Perhaps I'm wrong, but I would call the hairs on that M. hahniana bristles. On cactus, I think there are bristles, spines, or felt. Bristles range from hair-like to spine-ish.
I'd call that an M. hahniana.
Disclaimer: I'm in sunny Arizona, so any advice I give may not apply in your circumstances.
Seems normal enough for M. hahniana although perhaps a subspecies like ssp woodsii that has more centrals.
The first one might be M. hahniana too. It has rather bristly radial spines as well as a good set of bristles in the axils, not common features in M. albilanata.