Personally, I don't like the Ash character design - one of the lamest looking KOF characters ever IMO.
Anyway, as to your drawing. Overall, it's pretty solid and your lines are nice and clean. The arm wrapped around his waist, and how you didn't draw the rest of the body to reflect that (i.e. it doesn't look like you even drew the upper arm or shoulder for said appendage) looks pretty awkward - if you get someone to stand and do that pose for you, and compare the real-life example to what you've drawn, you'll see what I mean.
BarfHappy's color job is pretty good, except for the highlights on the hair which are covered in pixels which looks bad. Seeing as the flames are green, I would also suggest some green lighting where the flames light the body - in the interest of realism.