User blog comment:X-Machinist-X/Dishonored random stuff/@comment-1500935-20151018143023/@comment-16533050-20151018173346

I'd def contact the artist first - he may have more pics than just those shown.

Plus, remember what happened with the concept art of  François Baranger. While not even remotely the same thing, I think it would be best to try to build and then maintain a rapport with the artists.