My nic here is leather-guy, because I actually make my living making leather articles.
I've actually made some hide aprons, long ago, in the real world - except those I made were for the firepit attendants of the roasting pits for the great feast at some of the Renaissance Faires here (southern California).  They were of a similar style, except that due to the weight of the leather, tying them around the neck was too much weight for comfort, so I used straps from the top corners straight back over each shoulder, then across the back to the opposite hip.  Plus a loose tie straight across the small of the back.  It was important to keep the front loose, so when the fires heated the hide at the hip or legs, the guy wearing it had only to lean forward a bit so it would hang forward and keep the heat away from his legs.  Also I put a ring or loop of braided leather on each hip, so they could tuck a cloth, glove, or piece of leather there to keep it handy to use as an kind of an oven mitt when they needed to grasp something hot, or to thrust a tool thru to keep it handy.

Poses?  I just looked for some photos I took of those aprons in use, but it appears they were in a box ruined by a leaky water heater a couple of years ago.  I do remember that the guys wearing them tended to stand with one leg up on a low stool (or pumping a foot-bellows), or sitting slouched on a bench with one knee drawn up so the foot could rest on the bench to the side, so sitting, kneeling, standing "one-leg-up" poses would seem natural.  Also squatting poses, and striding poses, as they carried the spits into the feast.