So here's a fully coloured version, done with colouring pencils. I'm not too fond of how space and the earth ended up looking but hey, I still think it's worthy of posting and I hope people enjoy it.
Not really much more to say on this one, besides the fact that I poured a lot of effort into it. Feel free to critique away though, please!
I wasn't listening to one song in particular while colouring it, just the entire Project Chaos album which is bitching. Google it and give it a listen if you're a huge Sonic 3 & Knuckles fan.
-Time taken: 6 hours approx.
Tools used: edding55 fine line pen, shitty non-specific pencil, WHSmith brand colouring pencils, Adobe Photoshop CS4 (For touching up)