The sharp/white edges were one of the first things that I noticed that kind of bugged me a bit, too. It makes it feel kind of like And Yet It Moves, especially combined with the (temporary) awkward character animation (which was a great idea for a game but not actually all that fun, in my opinion). Cleaning that up and adding more objects so there's more variety will probably help, and it does look a bit better in motion than in the still shots, but I'm not entirely sold on it yet. Some of it looks pretty good already, though, like some of the trees.