Description from original post (created 2011-09-03 01:50):
This is a skin of the Pokemon "Lucario" from Generation 4.
It seems to be quite good quality from someone who can't make heads or tails of how to shade pixel art (or draw pixel art at all).
Credit to SkinEdit and Nintendo.
Get the full version from the Minecraft Planet download and the other versions are:
No Hair: 
No Hair or Ears: 