One problem that I encountered was trying to control the strong contrasr between sunlit foliage set against a shadowy background. The leaves were coming out too bright and washed out if I exposed for the overall scene. I had to greatly underexpose the background in order to make the leaves look right.
I like the way this photo looks, and I was wondering what kind of critter would look best in a scene like this. Some kind of bird, maybe an owl? How about a Mammal like a squirrel or a Pine Marten? These are good ideas, but I thought about doing something big like a Moose, Bear, lynx, or a wolf. Maybe it would look good if it was in brooding shadow behind the bright leaves.
Maybe I'll rework the tree to make it more dominant in the painting. The leaves should span the whole painting. Would that help, or ruin the whole thing? Time will help me decide whether to make changes or not.