Excalibur Sonic from Sonic and the Black Night. I'm quite pleased with how the helmet turned out, but otherwise I confess I'm a little bit disappointed in myself. Feel free to download and copy the helm off of it onto another skin, just please don't post it online, or if you do, please give full credit.
NOTE: While the helmet rocks, the rest of the skin isn't the greatest. If you want to help me with finishing the body, comment below.