Well, if you are new, they are nice trys. First Sig: Try to add some effects, flow is nice but the sig could need some more depth. Second Sig: I like it, simple, nice flow but remove the text, it is bothering.
I agree with Strykor. The first is simple, needs more effects. The depth isn't there. Seems randomy. Second one. Take away the text and it's nice. Simple, clean, but nice. Little shallow on depth though.