These are my first three sigs. First one: Second one: Third one: I love the third one the best. You thoughts?
i'd say second is ur best personally, third it looks like you stretched the render, no-no imo though the effects are nice, first one is a bit plain and the border kinda kills it :/ you have potential, but i say try some tutorials to get some more ideas, overall you got some nice text and effects but ur depth and blending could use a bit of work ^_^