Excellent idea!
In truth women should be permitted to post reviews where the rest of the reviews go (along with getting proper credit for it as well), but this would certainly be a great start.
I assume that we gals would be writing reviews as hobbyists, right? If so you might want to mention that because if hobbyists think that they are the ones that will be getting reviewed, it would be shot down in a heartbeat.
Unless you DID intend it to be for the females to review the hobbyists, in which case I wouldn't give a shit because it would be of no use to a woman like me.