Meh, I dunno what to think of these.

I like the flow, color and all. The image is nicely blended with the sig and fits well. The first one is better in my opinion on all of the above, though the second is good too.

The only thing that's bothersome is the text placement. The first sig is alright with text, but the second really looks out of place. Maybe try moving it around some and using different fonts.

I agree with otter, the first one seems better to me... Both are good to me, (probably because I suck at making sigs?)

Well, this is a bit of a test.

I think it might look better with the text in the darker area under his chin and to the left slightly, in a darker color of course. Then again what do I know. =P

The first one is your best.

D-d-d-d-default.

Second one, try some sharpening on his face, erase the bits that look grainy.