EDIT: Okay, maybe that's a little bit rude. I appreciate that you're probably fairly new to pixel art and such, so I would recommend doing smaller things for now. A texture pack is a bit much, perhaps come back on the idea once you've improved your skills doing other things?
http://www.planetminecraft.com/texture_pack/pokemon-15-minecraft/
Riddle me this, Riddler~.
EDIT: Okay, maybe that's a little bit rude. I appreciate that you're probably fairly new to pixel art and such, so I would recommend doing smaller things for now. A texture pack is a bit much, perhaps come back on the idea once you've improved your skills doing other things?