Since everyone is commenting about the trees, I should probably mention the other great aspects of this build. The path is well-built, the addition of the mushrooms was a good choice. Oh, and the trees are amazing! ;)
Looks great! One small suggestion, in the first few photos, I think a black paper background would have been beneficial because I think you were going for the look of having your character deep in the forest, but the white photo edited background doesn't give that effect. I think a black construction paper background would give more depth and make the character seem more immersed in the forest.