Its really pretty interesting to watch as the effects from boards like TM and G4(RIP) filter down through the grunge boards anymore.Mostly because of NSL, like the bar thing for example. Not to say thats a bad thing...just interesting IMO.
As for the sigs I don't really care for either. The first one is just a slight change on the pixel stretch effect and is way over sharpened when the stock isn't sharp at all. Plus there isn't any blending to speak of, and the circles don't help the sig at all.
The second one is better but you don't have any defined shapes in the bg, which just gives it more of a random feel then anything, plus you have the blending thing again. Also the typo looks pretty bad. Try to give more style to your sigs instead of just brushing a bit here and there and being done.