I like it. I didn't make a sig for about that long once and wow, I pwn'd myself when I tried to get back in the game. (BTW ripple is one of my favorite filters )
As said before no real flow to it. And some more depth would indeed be nice. As well as a light source =\
I really like the emotion of the tag. Also the whole color of it is good too. I guess some nice lighting and depth is what it needs.