I like the abstractness of this thing, but the picture looks of poor quality. I'm with you though, no idea what I'd put for text. I'm no good with text anyway. Good work though.
I reall like the style you used for this sig and the rhymefest one umm can't really suggest any text, but maybe try some patterns in the bg or something.
It has a nice flow, different style, but the outer stroke needs to go. Ruins the flow. As for the text, look through soem abstract pieces like yours around Deviantart and make a choice of what you think would look good. Something simple, but kind of "funky".
