Yes. I would suggest the Sugimori art for starters, which can be found in most sprite resources, including Pokemonelite2000. These are far easier to outline and whatnot more so than the sprites, so you should find this to be vastly easier. If not, then quite possibly you have no capacity for pixel-overing. XD I'm just kidding. Seriously, you really should find them to be easier. I use the Sugimori art for almost all of my pixel-overs, so I know what I'm talking about on that front. Give it a shot.