Sounds like a good experiment. In terms of the rubbing, I think what you show looks fine. The only suggestion I would offer is to wait a couple of days, leaving the cheese in the mold and flipping periodically, before removing it from the mold and rubbing it - this lets the cheese soften up a bit.
FWIW, my "Stilton-esque" attempt a few weeks ago developed quite a signficant amount of linens on each end, due to trouble I had with my ripening box arrangement (the ends stayed too damp). I'm still waiting for this cheese to finish its ripening (aiming for 12-14 weeks), but when I cut it and bagged it at 6 weeks, the combination seemed acceptable, though hard to be sure with the immaturity of the cheese and the fact that I added too much salt.