Ed, Nice work on your Shermans! (And the Flak 7/1!) Acouple of things though.....
It looks like you used the CMK M3 gun and shield for the M4A2 mid - its too large in scale and looks it. I would of stuck to the kits gun.
The sand shield mounting strips are too far forward.
Like Alan, I would think the wading stacks wouldn't be like that. All my refs show them off rather quickly.
The rear rack on the M4A2 was made from rebarb - how did you simulate it?
Not all the 4th and 5th Batt. tanks had the plank armor added. So you have even more options for your Iwo Tanks. Nice effort , keep upi the good work.
Chris