I like your idea. However, there are a few things that bothers me. First, I don't like the fact that the background seems to look less realistic to the sides. The walls seems to be disappearing to the left and right. Maybe adding some line to separate the wall and the floor might help. Second, the leaves shadows on the left corner should me more dark and opaque. Also, you might want to reduce the textures because it makes the leaves look too realistic.