Is the image 24 bit or is the portrait its self still remappable?
Ok! I couldn't tell because it still looked like pixel art. I can see the "something isn't quite right" on the trees thing.There are a few things that could possibly be done to make it look "right", whatever that is. :pOne observation is that the trees don't feel in proportion. You've got these really lovely thick trunks but the canopies of the trees (I think that's the term) are very short. Another thing you could do is do some highlights on areas of the tree mass that are closer to the viewer and darken more heavily areas that are farther away. You might also be able to shade more intensely the edges of the trees to make them seem a little thinner/more round.