Mini-Rebecca is adorable. Her dress works very well in miniature, and the velcro in her shoes makes a lot more sense on the mini than the big doll. Her hair is soft and richly colored, but has a tendency to be wild as others have said. Her barrette, though, is tiny and functional and completely adorable.
Overall she gets an A. The floofy hair took off the plus.
I got mini-Rebecca to me a mini-me for my doll, Caitlin, so I turned her into a modern doll, which she pulls off beautifully.
I also have mini-Josefina and mini-Felicity, so I threw in a comparison shot between the different eye colors. Both mini and 18" hazel alternate toward brown or green depending on lighting and clothing--mini-Rebecca has a really good eye color match to 18" hazel.