As I got numbers of requests about the way I make pixarizations, here is a little "step by step" of this one: [link]
Original picture is a Plymouth Roadrunner by
with his agreement [link]
Depending of the subject and the basic picture I have, I use mainly photomanipulation and less or more digital painting.
When I wrote "Copy an element", that means copying a piece from the original picture on a new layer.