I love your style. Exspecailly with Tails's bangs and Sonic's quills. The soles of the shoes really capture my eyes too. Though I must ask, why do they have 3 lines on their gloves. My mind just can't figure it out. I'm thinking you mimiced the gloves of Mickey Mouse, because, well, he had 3 lines on his gloves. though it does look awesome.
Whoa, that's awesome! Love your stylish take on the duo, they look great! I really like how you added all those poses along with the colored characters, adds a little pizazz to the piece.
You have an interesting style too.