Very nice brushwork and I like the posing, but the balance might be a little off - I'd suggest regular horizontal flipping to make sure everything's properly in proportion. Personally I'd use a softer brush for the glow on the ears and render the flames either with Liquefy (I know, I know, but fire is actually loads easier using that much-abused tool; build up some glow on a separate layer, using the Linear Dodge brush, then tease out some flames using Liquefy) or a much sharper brush; whilst fire gives off a fairly diffuse glow, flames themselves are quite strongly delineated. A tiiiiny bit of Curves tweaking might bring the contrast out a little more; I must emphasise, this is really nicely-rendered, but it could easily pop a little more, particularly in the areas not directly lit by embers. Maybe even a smidge of specular lighting on the rivets, help knock them forward a bit from the general plate? And for Pete's sake, save at a higher quality! This is far too well-drawn to deserve all those compression artefacts.

(I'm sure Delano understands what I'm getting at here - you simply do not get to be as good as that piece demonstrates without critique - but I just want to make sure everyone else realises that I'm not picking a fight; this is good, and I like it!)