The Eugene Weekly has a nice review of Shades of Milk and Honey that manages to talk about the book without being spoilery.
Kowal has a good time with the tropes and tweaks of this sort of story, making both sisters sympathetic and tossing a few obstacles into the way, but Shades sparkles to particular life when its characters are working, thinking about or discussing glamour — the way it works, the relevance of passion, the power of a muse.
You can read the full review at the Eugene Weekly.