Living room - symbolizes personal leisure, space to 'be yourself', and day-to-day life.

Mom and Grandma:
Mother - represents, nurturing, wisdom, the subconscious, intuition, natural and instinctive life, and more experienced part of feminine self aspect. Also, your relationship with your mother. Because the dream isn't about your Mom, but she is there, suggests you feel the need for guidance, or support.
Grandmother - A symbol of knowledge and wisdom, as well as security, protection, nurturance, and unconditional love. Consider the qualities and characteristics that exist in your own grandmother.

Young girl - Strangers - If the person reminds you of someone you know.. think about your relationship with him or her, and the issues that the dream has brought up, or how you relate to the person that is being represented. If these people are totally unrecognizable (they don't remind you of anyone you know)... they would represent different, and unknown, aspects of yourself. They are extensions and projections of your own subconscious, and personality. Alternately, a stranger may represent an unknown fear, or danger, you feel in your waking life.

Razor sharp teeth - Dreams about teeth usually reflect your anxiety about your appearance and how others perceive you. Unfortunately, we live in a world where good looks are valued highly, and your teeth play an important role in our 'image'. Teeth are an important feature of our attractiveness and presentation to others. 
Teeth are also used to bite, tear, and chew. In this way, teeth represent power, and our own 'effectiveness'.
Broken or sharp teeth - suggest that you should think before saying something 'sharp' or 'biting'.

Trying to bite you - represents your vulnerability regarding your unresolved issues emotions. You may be pestered by a problem or obstacle.

Run outside -
Running Away - suggests something, or someone, in your life is difficult to face, and that you would rather run away from it than face it.
Escape - represents the need or desire to break away from unpleasant people or circumstances in your life.

Large house - A house usually always represents you, or rather 'the self'...your body and the attributes of your personality.
They symbolize your emotional and psychological 'self'. All of your experiences, stages of development, and parts of your conscious and subconscious life may be represented by that house. The house may be representing issues concerning a particular dilemma in your life, or it may be more general and comprehensive.

Beige /Tan - a lighter version of brown...therefore would suggest similar aspects and feelings of brown, but not as 'intense'.

Brown - an earthly color and may, therefore, symbolize the instinctive or the sensuous. Also an autumnal color and as such may signify a (feeling of ) decline; low spirits or depression.

White - White is a feminine color. Symbolizing virginity, purity, well earned success, honesty, virtue, innocence, peace, happiness, joy, transformation, cleanliness, dignity, awareness, clarity of mind, hope, and light feelings, but also emotional coldness and immaturity.
White in a dream might possibly be a reminder to resolve special situations and problems.

Tree - Because of the focus on this particular tree, the tree in your dream is you. The health, size and overall quality of the tree is indicative of how you feel about yourself.
Lush green trees, symbolize new hopes, growth, desires, strength, and stability. You are concentrating on your own self-development and individuation. Also, consider whether the tree is alive with leaves, flowers or fruit, or if it's barren.
Falling tree - indicates that you are off balance and out of sync. You are off track and headed in the wrong direction.

Willow tree - A willow could be a symbol for yielding strength, a tree that bends rather than breaks.
A 'weeping' willow could intone sadness, tears and sorrow.

Water - represents your subconscious, your emotions, and your accumulated life experiences, and the flow of 'feeling' energy. It is also a symbol of new life, refreshment, vigor, energy, cleansing, emotional stirrings, fertility, growth, and creative potential.

Falling tree - indicates that you are off balance and out of sync. You are off track and headed in the wrong direction.

Garage - represents a place for temporary resting of goals. A storage place for ideas or ambitions, or storing hidden aspects that unconsciously drive you in your waking life.

Cannot get out: exits are blocked -  you might have to fight your way through difficulties.

Box - signifies your instinctual nature and destructive impulses. Alternatively, you may be trying to preserve and protect some aspect of yourself. The box may also symbolize your limitations and restrictions. To dream that you are opening a box, denotes that things are being revealed about you that were once hidden. Consider your feelings as you open the box. If opening the box fills you will fear, you may be uncovering aspects of yourself that make you feel anxious. Also consider the idea of 'being boxed in'.
Also, suggests what you have or hide inside yourself. Memories, treasured experiences, or stored feelings.

Bones - represent the underlying structure of your personality or Psyche. Underlying strengths and principles that sustain your life.
The girl (possibly a representation of you) eating the bones suggests something is troubling you deeply...something is gnawing away at your underlying strengths or principles.

Bathroom - Cleanliness, needing to be cleansed. Also, a place of privacy or needing to get away from others. Alternatively, it could represent that fact that are spending too much time alone, and need to get out more and socialize.

Plate - indicates your social advantages and a hunger for life. Because the plate was covered in soil, grass, flowers and leaves, it suggests you 'hunger' for things associated with nature.

Not wanting to harm the tree - suggests that you feel an affinity for nature. That the tree may be representative of you, it could be that you feel that you are worried about acting on something lest it do further harm to you or a situation you are in.

Throwing the plate of dirt and leaves into your bed:
Bed - where we sleep, rest, restore our minds and bodies and engage in sexual pleasure. The bed could also symbolize the bridge between the conscious and the subconscious (i.e.our daily lives and the great unknown, our spirit and our psychological undercurrent). The quality and the cleanliness of the bed in our dreams, may say something about the way we feel about ourselves and our relationships. In reality we "make our own bed," so the dream may reflect that bed and remind us that we have to either change it or lie in it.

Calling for help (needing rescue) - it is likely that you are overwhelmed or feeling incompetent in an important area of your waking life. You may be feeling that the consequences of failure could be catastrophic.
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Do you feel in need of help in your waking life?
Do you feel the need for more privacy....or the opposite, that you need to get out more. That you feel trapped?
Have you been feeling 'out of balance' lately?
Is there something troubling you deeply?
Is there something that you need to face, but are reluctant to?
Have you been avoiding something, or someone?
Have you been put in a position where your principles may be compromised?
Have you had to put some plans, or a specific goal on hold?

Hope I could give you some insight, good luck!

Gald I could help, take care and have a little fun.
J