I finally made two more userpics. You can see all of them here. I think the heart one came out quite well, although not quite was I was expecting. The sleep one may be a little too purple, I might change it around some more later.
I'm halfway tempted to change all of my icons to look like those, but that seems like a lot of work, and I'm not sure it's worth it. I kind of like the rest of my icons, anyway.
Yes, I know, there are other things I should be doing right now.