Thanks for all the advice, guys! I guess there's a clear consensus that I should watermark/stamp/sign my work.
I made myself a little stamp and I've been trying it out on things and I wanna know what you guys think:


First off, here's the stamp itself. It's grey so I can change the color and stuff. The second image is one without playing with the opacity at all; just a different color.




Here's three where I actually changed the stamp to completely white and I altered the opacity. The first, third, and fourth also have links back to me.
I dunno, the first one is really... difficult to watermark or link-tag since there's so much going on in that particular piece. At the same time, my URLs are really, really long, so... I don't think that's working for me either.
At the same time, though, when I put my URL in my wallpaper pieces (Number 4), it doesn't completely draw my attention to it.

And just throwing one in with my signature...
My eyes keep getting drawn to the watermark, too, probably partially because I'm actually looking for it. The opacity might be a little too strong as well. Also... I might've made it way too big and I need to play with sizing.
I dunno, not conspicuous enough? Too obnoxious?
Thoughts? Comments?
Art and CSS by *xlolfishx