A co-worker of mine likes to judge a photo by imagining handing it out to a grad-level creative writing class and having them each write a story from it. This one is just chock-full of possibilities. The dead butt at bottom makes it for me.
I was actually taking a picture of the dead butt at the bottom when the guy walked through. It was just instinct to click when I saw his foot pause.
Regarding the sharpness, that appears to be a digital artifact. I think when I exported the image a small bit of sharpening was applied so it matched the print. But in the resize process that the APUG server applied it seems to have magnified it. I hadn't noticed it when I first put the image up.