Sasd, that is amazing work! Beautifully weathered finishes, well-composed scenes, and great figures, too. Fine job scratching the dozer blade, too! Very impressive!
I scoured the pix long and hard looking for something to offer some constructive criticism on...but that's a tough job! If I had to mention
anything (and I stress, these are only small, insignificant things), it'd be that in the first pic (Winter M4), the left track doesn't quite seem to be fully seated on the sprocket. And in the fourth pic (early M4A1 "Alberta"), the suspension doesn't quite seem to be engaging the terrain as well as it could be. Seems to be kind of floating over the rubble in some places.
Anyway, I had to look real long and real hard to find those two things to comment on, neither of which detract from the impact and beauty of your work.
Looking forward to seeing your two other Shermans!