We're thinking along the same lines then
The window frames you sent through are 0.22mm thick, the same as the thinner of the two sets of brick sheets - the thicker sheets are 0.55mm thick.
I guess what I have is closer to 'brick card' rather than brick paper in the style of superquick sheets of old.
I'd planned to have a practise on one of the rejects you sent through to see if it comes out OK, definitely easier than cladding the shed after building it!
My main concern is whether the card is too thick to allow a good bend around the lower brickwork protrusions, I know a half cut line on the inside will ease things, going to be a challenge to get a neat chamfer on the top edge as well...