I think it's a little darker than it needs to be, but as far as the content goes, it's very cool!
In Photoshop, I make a new layer over everything and fill it with White and then set the blend mode to color to show me a pure black/white version of the image. Then I take a look at the histogram to look for an overall balance of light and dark, but there's a LOT of dark pixels. That's just my process.
"Doing something half-assed more than once just makes you more of an ass."
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