T-34/85 did not have upgraded armor to the T-34/76. It carried a new turret, and one of two varieties of 85mm gun. The 85mm was comparable to the 88mm in most ways, able to kill Tigers (including King Tigers) and Panthers with relative impunity.
The drawback was the lack of armor, which it tried to make up for with speed and superior maneuverability, as compared to the Tiger I or King Tiger. It was comparable to the Panther Ausf A and D.
Waffle...it looks great so far, but you gotta lose the muzzle flare at the end, and the fuel tanks on the T-34/85 were cylindrical barrels located on the sides of the rear hull. The boxes on the back of the T-34/76 are only relevant to the T-34/76 Mod 1940.
The smaller cylindrical objects you'll see on T-34/85 are tanks for laying smoke screens. The contents were dumped onto the exhaust.
Here's a model I did of a T-34/85:
Otherwise, it looks great and I'm happy to see it in the game, thanks for you work!
J