I enjoy making interesting thumbnails. Sometimes I zoom in on a really close part of the image, sometimes I am zoomed almost all the way out. But I like finding the "sweet spot" in my image that I feel justifies the rest of the thing. What makes me click? It's easier for me to say what makes me NOT click. I generally avoid giant chrome logos. Blank stares. Lips that could suck the paintjob off a new Ferrari. Don't get me wrong, Angelina Jolie has a nice mouth, but I've seen some V3s with lips that rival California in sheer land mass. JPEG artifacts. Insanely large breasts. Most toony things don't really float my boat (though I do have a GIRL render in mind, and have looked at several GIRL pieces since she was released). Hmm. What makes me click. I like dark, moody images, with good contrast. (An image can be dark but still contain a full range of tonal values.) I like thumbnails that show care with cropping and presentation. I don't mind if you show only part of an image or the whole thing, as long as the choice accurately represents what's on the other side. I dislike those joke thumbs that show a giant breast shot and you open it up to find Untextured Don floating in mid-air. That sort of thing. :)