Lol, I followed that tutorial. Well, my problem is that the background is way too distorted and smudged to know what´s going on, too, it lacks in depth, perhaps blurring the background will make it look better, maybe some gradient maps, a lighting, and too darken the edges of the tag.
.. Guys, add more content to your posts in this section. Why do you like the sigs? What's the thing that captured your attention? Any of these would fit better in your posts, please take your time to study the art you comment on. Follow the link for tips. Be careful not to spam in your own thread, eh? I'll keep an eye on these guys in the threads of this section, don't you worry. OK, my cnc: *prefers 2nd version* I dig the colour theme you went for: green, yellow and earth colours. The background is rather chaotic, but for some reason it works for the Joker.. It's like reflecting his personality, that I like. Still, try going for what Chaser007 suggested - see if the results becomes better.
Sorry about the short post, NRA, I deleted it. I disagree with what Chaser007 said, I think that it's I nice touch how the Joker somewhat blends into the backround. It kind of gives it a tapestry look. However, I think the word "smile" could be lightened up a little bit, just enough so that you can easily see the letter "L." It's cut off a bit and kind of looks like an "I." You may also want to use a slower gradation from light to dark in the backround. It might look better if there is more light on right side of the joker so you can see it blend from light to dark. That way, it looks more unified.