Here are a couple more images from DeviantART that we found from Cosplayer Vera-baby. We previously posted a picture of Vera as Princess Peach with a mushroom tattoo on her hand. Today Vera dresses up and poses in some computer generated backgrounds as Mario's console rival Sonic the Hedgehog.
Sonic the Hedgehog was introduced by Sega during the 16-bit era of video games as Sega's Genesis system went head to head against the Super Nintendo Entertainment System. Sonic was introduced to try to be a hip and cool mascot to attempt to sway kids over from Mario the mustachioed plumber's system.