As a sequel of sorts to the last post, here's Dr. Robotnik, based of the Satam concept art. (Yes, this is real art.)

Random Sonic art based on different characters.

A Sonic Redesign based on this piece of Satam concept art.

.... ... .

Some new Critters art.

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Guess the Sonic character based on concept art!

Ultimate Sonic Art

Ice

Metal Glocknic