Who is this guy supposed to be? Whoever he is, you've drawn a very intimidating creature. Horns, glowing eyes, a powerful physique and a pose that demands dominance and command.
But it's not just his appearance that's terrifying, it's also the fact that he is destroying this entire area (a city?) with minimal effort and without any emotion. The story of this scene is probably what draws me in the most.
Background could always be improved if only a little bit, especially the building. But that's a nitpick, your character is the focal point of the picture.
Goddamn! But seriously, this is really gloomy and scary, which I guess you were going for, because it is apocalyptic. The character, I assume Satan, Is amazing in his own right, and looks so freakin' cool! The meteors are a nice touch, especially when coupled with the sky scraper in the background.
Really nice work! It's just my opinion,but I don't think you even need the building in the background. It looks kind of less developed than the rest of it, and detracts from the badassery in the foreground. Other than that, great job!