Well, the vector is pretty good, but the bg needs work. the trees especially need more work, their kinda confusing with their shape and texture or pattern or wtv you used to make them. im not rly sure what you did exactly to make them.. but try looking at some walls here at AP for examples what what trees should look like.. right now, the color, shading, etc.. doesnt work. also, i would remove all the brushes you used in this wall (flower petals, branches, etc.) because they dont fit well. and also, the text doesnt fit well, so i would also remove that if i were u. for behind the trees, it should be much darker then what it is now so that it looks like the forest has more depth and gets darker as you go into it. nice idea though.