Sanctuary in the trees

This is a pastel (not oil, chalk) piece I've been working on for a bit. I used my new prismacolor Nupastel sticks! It's not as good as the reference, but I really like it! I like the original because of the contrast between the two sides, with the left side somewhat warmer than the right! Criticism is WELCOME!
Original photo used as a reference here: [link]