Is it odd that I think the best part of this piece is the chain? And I don't mean that in a bad way.
Though, I find it very hard to understand what is going on in this. I mean, I understand he is towing a comet, but what's with the gray half and everything? And even though I know you're not done with the comet, I think you're approaching it completely wrong. It looks more like clouds than gases. The tails of a comet are much more defined and clear, instead of bubbly. Think of it as a propane torch or such. They also have two tails, but you're fine with just one, I think... though two may be more dramatic if you want to take advantage of that, because they're usually two different colors.
