Here is a picture I once did of Sonic and his friends cosplaying as Mario characters. The following characters are seeing cosplaying in this picture: Amy Rose as Princess Peach, Sonic The Hedgehog as Mario, Miles "Tails" Prower as Luigi, and Cream The Rabbit as Princess Daisy. I am re-uploading it on here after my original account (casey64) had been deleted by an evil hacker. I will do my best to repost all the pictures I did before my account was gone, and I hope everyone will recognize my artwork once again. Thank you.
Sonic (c) Sega / Sonic Team
Mario (c) Nintendo