In some of the newer releases of the pokemon games, specifically black and white (as well as black 2 and white 2) you get a device called a "C-gear" that can be customized via various codes and promotions.

There was three in particular I REALLY liked unfortunately they where only ever released in Japan. Of course they where of the original starters Charizard, Blastoise and Venusaur. I aim to rectify this problem through making them into wallpapers instead~!

Charizard was actually the easiest of the three, since he didn't seem to have as much going for him as the others. His fire was a bit more time consuming though. I tried adding a nice border that's kind of like the old C-gear style without being too distracting or obstructive.

Links to images:
http://www.projectpokemon.org/events/cgear.php

alt link:
http://bulbapedia.bulbagarden.net/wiki/List_of_Pok%C3%A9mon_Global_Link_promotions/Skins#C-Gear_skins

I may add more sizes pending requests.