I was surprised at how many covers featured this same model in this same pose. I only used 3 as an example here, but there were several more. Some had been redesigned because I think the authors realized how overused this image is.
The Treachery of Beautiful Things made the best use of beautiful-girl-in-lovely-dress-looking-over-her-shoulder. The flowers and softer colors make it more appealing. It really is a lovely cover.
Here is another image that is used far more than I realized. Again, I've narrowed it down to 3, but there are many more covers with this same model. I actually don't think any of these are bad, but I like the simplicity and the colors used in Cinderella Dream.
Do you notice when images are overused on cover designs?