[rlt3]

I think what makes RottenTomatoes' rating system pretty good is their clear indication of 'good' and 'bad': A fresh tomato and a rotten tomato.

The clouds on this website aren't bad, but I didn't even realize they were there for a few minutes while I looked over the book covers. They blended into the background and didn't instantly provide a positive or negative connotation.

Since the site's name is 'I Dream Books', perhaps a nice fluffy pillow represents a good book. Or a dream bubble with a happy face. Perhaps the badly reviewed books get a dream bubble that's bursting, or has a nightmare inside.