What a beautiful symbolic dream! It just screams transition & leaving the past behind you. The Raven is also a symbol of Death & thus it represents the passing of something in your life and getting ready for the new phase.
Key is to look how you felt about this In the dream.
What feelings did the Raven stir up in you? How did you feel when it fell into the greenery? Did perhaps some instinct of you pass away? Ravens are also mystical birds to some. Is there still enough magic in your life?
What is your feelings about raven in general? How do you perceive this bird?
Just some questions to help you get started on your dream.