Yeah, in the episode last night, the female Klingon had this really long skull and looked nothing like the females from other series. I don't know if it's supposed to be explained by a genetic mutation or that these Klingons are some other race. The thing is that"Kahless, the historical figure from the past, is portrayed to look more like Worf's type, so yeah.... weird.

https://en.wikipedia.org/wiki/Kahless