Very nice!! I like the 4 color type much better than the 3 color type, though the zipper cut is better.
The only one I've ever seen with exposed button pockets is the one at the very top of this thread. I don't know what to make of it because the previous model had covered buttons and so did the standard production. And if the exposed button type was a very early model one would think the surplus 4 color cloth would have been made in that design and not the standard production.
Maybe the exposed button type isn't really it's own version, but is instead a factory variation, a cheaper "homeguard" variant like Estonian variants, or maybe even a trial model. Until there's some indication what this variation is I personally am sticking to thinking of these uniforms as 1st and 2nd Models, with 2nd Model being in both 3 and 4 colors.