I think I'm in the minority that think the character designs for the movie are a improvement. I always thought in-game they were always pretty unappealing, though they looked ok in artwork. That 2D animation from the latest game is barely good enough for TV, let alone a feature film. Obviously a slickly done 2D film in the style of the game artwork would be neat but no one would fund that unfortunately, and the CGI looks good enough for this franchise to me.