For me, a spanking scene is so much better in video form than in pictures. That being said, as far as punishment photo sites go, Spanking Images is a really good one.
The SpankingImages design isn't anything special. In fact, it is quite unattractive. However, it does the job and makes it very easy to navigate through the 401 sets of spanking photo shoots. From amateurs to Europeans, each sexy chick gets a good hard spanking and has the red marks on her ass to prove it.
The content is divided up among various link archives and you will just have to browse them all to see what's there. Some of them have thumbnail preview images, while others are just number links (which means you won't know anything until you click on the link and see the set of pictures).
They appear to have redesigned the site a little bit, but all they really changed was the background color. While most of the content is pretty much the same all around, there is one section called "euro bottoms," but, as it turns out, asses are pretty much asses, no matter where they come from. There isn't really anything to set it apart from the other sets. There is also an amateur section, but the same holds true there.
That's pretty much it. Picture quality is terrific and some of the more recent ones are even higher-res than the others. There are plenty of good shots of those asses before and after the spankings as well as during the action. You obviously won't get any of the spanking sounds that you would with videos, but there are some great shots that catch the pained faces at the moment of contact of hand/paddle/etc on ass.
The site doesn't have any update info, but based on how many sets are available today compared to a year ago, they are averaging a new set every two weeks, but also appear to be removing older material. There are no bonus sites, just a lot of links to other sites that you have to pay for. Spanking Images has a fairly cheap membership, so if your red-ass desires require no video exposition, then this site might be worth checking out.