My pleasure. These masks look good. However I would be careful of the riveting. Most of MiG-3 frame was made of wood. The rudder and stabilizers were o metal that's true. But these parts were fabric skinned what means tthat the metal frames of them were veneered with the canvas making the rivets covered and hidden IMHO. I don't think Soviets would rivet fabric skin to the metal frame. Also rivet lines on the metal parts aren't noticable as much as it can be expected. I think the reason for that is these rivets were of the flush-head rivet type and the coats of the primer and colour sealed the lines around them. It seems that the rivet lines can be better seen at the metal skin of the centerwing , especially of MiG-3 wrecks. Here a couple of pics.