Due to lack of acclaim, I took another shot at it. I think it turned out much better this time, and was well worth the hours of work. Edit: Given to TDD for use as a signature. Images used: Can't find the tree...
I like it. Looks plain, but really original, the fog (I think you were going for) looks cool in the center, the figure on the left side looks a little dark to see what it is. The flow is way better on this one than the other one, maybe take it down a bit on the lighting, but not much. The orange glow is nice on the left side of that flying thing. The only thing I don't really like is the thick bar on the bottom of the image, but thats no biggie. Good work.
The fog - That's actually smoke coming off of his feet as he's 'burning rubber.' It dissipates as he's further from it. The figure on the left, that's Tails, and he's hiding behind the tree, which isn't going to be very well lit by the flame of Robotnic's jets. That thick bar on the bottom, if you didn't notice, is the same ground that is used in Sonic 2; As well as the tree that Tails is hiding behind is a tree from the same game. I tried to follow the theme very closely this time.
Ah, I should have been more specific, I was mainly talking about further in the distance, looks foggy. But yeah, I can see now. Also, nice job following the theme of the game, you hit it.
Way better then the last one, but the trail is still to big, I like how you added the ground and everything, 8/10 because the trail =/
Meh, lol, thanks. I just figured that the trail would be longer being as he is running at 'sonic' speed. I guess it makes sense that it could have been shorter, though.