Regarding Peter Cushing’s skin tones, he wasn’t tanned, but he wasn’t pale as a sheet either:
It all depends on which photos you go by. The ones I’m using as reference are in general lighter than what you are doing. Most of the photos of Cushing I’ve looked at tend toward lighter tones. I do like the feel of what you are doing, but tye midtones seem too dark and saturated for my taste. Considering what you started from, it looks incredible. A difference in taste does not deminish my admiration for your work.