I tried using signaturecraft.us but my face on my avatar is white. just the body.
[CENTER1][1img]http://oi43.tinypic.com/2gtqm9u.jpg[/1img][/1CENTER]
Remove the number 1's in that img code thing and paste it into your signature, if you want.
I edited the picture from signature thingy and added your face on it manually:P