very profound dream, we could start by saying the woman were aspects of the goddess [maiden, mother, and crone] or it represents the nurturing, caring nature, or she could also be temptation and guilt.
if your older than the teenage girl in your dream, then it's telling your there's an 'immature' aspect of yourself you need to work on before you can grow. the wings are a means of escape, or new found freedom. the light wing, rather angelic, symbolizes just that, where the dark bat wing is disaster.
her eyes [since you took note of them] are knowledge and insight, green is positive change, good health, growth, fertility, healing, hope, vigor, vitality, peace, and serenity. red represents anger, vigor, passion, power and impulsiveness.
the whole death aspect is not necessarily death of a person, or a warning, but a chance to start over, rebirth. the weight is you feel a burden, you're carrying too much in waking life.
overall, i think the dream is telling you to look at both sides of everything and start over with a new view of things.