You may not know it, but I'm a pretty big Sonic fan. Dreamcast era was where I came in. Sonic Adventure may very well be the first video game I ever saw as a kid. I specifically remember watching my older sister play Emerald Coast as it BLEW. MY. MIND.
Despite having never played Sonic CD (which I soon plan to remedy), Metal Sonic was always one of my favorite characters so I'm glad I got a chance to do a proper piece with him.
Many thanks to ~TheOmegaRidley
for the Sonic Generations brushes [link]
Really saved me some time with the background.