Well, first of all I'd suggest you wait a lil' before bumping your own thread. Someone will most likely reply and if nor then bump it after oned day or so, but not after two hours. Secondly you seem to be one of many who try to copy a certain style from another artist. There's nothing wrong with helping yourself by looking for inspiration, but try to add something unique to it so that it's not just a style your copying. So I suggest you to find an own style.
The first sig is too plain for my taste. It is a solid sig but it doesn't compare to those you're trying to copy. The second sig is actually very solid. I'd suggest you to work on the text part.
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Crespo 
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