This one is the best. The sign makes it for me. A couple things to make it even better would be add some contrast, and secondly run unsharp mask on it. It looks a little soft as it is.
But out of the tubs series, this one is by far my favorite.
Yeah yer right...it seemed darker on my home cpu...now that I'm at work it does seem a bit light. I prob need to collaborate my monitor or something...