I don't really like it very messy quality seems low not sure about the depth and color I like your sprite sig better
Kill some of the blue glow. It's too overpowering. The buildings seem slightly overcontrasted at some parts. I think it might look better with no guy or maybe a different guy. Nice job. I like it.
I don't see any flow or depth. The guy to the left looks a bit with the background. Not much visual interest either. I never liked text in the center of sigs, and it's not that easy to read. Sorry.