Jaggedness sure, but the graphics still look pretty good to me. I also agree that the cell-shading does the game well. Makes it seem more cartoon'ish, which may as well go hand and hand with Pokemon.
Also guys, the game is still in the early stages, especially the single trailer we got and very few screenshots of Sylveon. There's always a possibility that they'll improve the graphics closer to release date. Who knows, maybe the jaggedness will also be something they'll work on.