I very much enjoyed that in season one, each Klingon house had their own uniform, and customs. In the TNG era there is a uniformity to the Klingons, which flattens them to monoculture. Even the simple touches of having House Mo’Kai engage in facial scarification, or House Kor wear war paint implies an expansion to their culture that makes me far more interested in them.
Also, I’ve always enjoyed the scheming Klingons, like the ones we see in TOS, or the Duras Sisters, so Kol really appealed to me as an antagonist.
The new prosthetic seemed like a natural progression of what we saw from TOS, to TMP, to “The Search for Spock” and TNG. I do think the decision to make them all bald in season one was a miss, but it’s otherwise a good design that effectively communicates the ferocity the species is supposed to have.
I wonder if they wanted them to all be bald if it wouldn’t have made more sense to have T’Kuvma’s followers be bald, and the others that arrive after he lights the beacon engage in tonsure once T’Kuvma becomes a martyr.
Oh, and the elongated craniums on the women was also an odd choice that I’m glad was walked back for season two.