The images I was looking through were the original RAW images, the backups, not the ones I'd processed and saved. This meant that there were originals of the images I'd liked and processed, but also a lot of images that, for various reasons, I hadn't liked at the time. And here I found the perfect example of why you should always, always, always save your original files:
Detail from Lower Antelope Canyon.
I've really fallen in love with this image. It brings back all the incredible excitement of shooting that amazing place, and the light is killer - it's like a picture of molten gold surrounded by bronze. It's all too easy to like your own shots, but with this one I can't help it and don't care! Gotta get back there one of these days. Soon.