Knuckle's Iron Fist... C'mon, everyone should know that...
Anyway!

A while ago when I made White Shadow Kitsune, I was told me style had suddenly become very 'Sonic the Hedgehog'. So, naturally, I thought I'd drag Sonic the Hedgehogs universe down to my level, and draw Knuckles a little more MY way.

Knuckles is to raw power and versatility as Sonic is to speed and finesse. Hes a bloody great character, and so I drew him rather than anyone else.
The white design on his shirt is the same as on his usual body, and his shoes are a mixture of his own and Sonics, for that longer, taller feel. Plus you know what they say about Echidnas with big feet... Huge frikkin' metal knuckles! Overall the yellow and the brown compliment the red nicely, without making his colour palette too diverse.
I changed Knuckles gloves to be black leather rather than the traditional "I can't draw hands" white gloves that Sonic, Mickey Mouse and Mario are all infamous for; and gave him butcher knives for some Wolverine style kickassery.

My only issues with the final product are that the bottom of one of his shoes is a bit flat in comparison, and that his hand in his pocket seems to disappear rather than push up the material. Maybe he just has really deep pockets.
Amy Rose: "Is that a pair of steak knives in your pocket, or are you just happy to see me?"