I'd only revise my opinion if the breast turned black or dark- that is a male colour- but she looks all female to me.
Wow- the crest is male-ish the way it flows now...she may become really poufy though. There's no wattles, right?
Toast is very female, and Blondie is a female colour- shes a partridge or blue partridge hen. I think more blue partridge. Here's a bantam game hen- same colour as your girl.