Excellent scene, groundwork, composition, painting etc.
The only nitpicks I have are that you did not remove the grouser stowage box covers (oval things on top hull near tailllights) which were not present on the A3. Also, the lack of engine door rests (you have a jerry can laying right where one would be on the one side of the upper hull), which were present on all A3s.
The only other thing that confuses me is in your description. You say the Tank commander has to decide whether or not to take out these fleeing Germans, yet the tank commander is not shown. He would be under the other hatch you've closed, and so that should be the loader sticking out of the other hatch.
As a final note, with firing so potentially imminent, would the driver have his head out of the hatch? If he did, wouldn't he at least wear a helmet? Just some food for thought. Overall, it is a very well done dio, I'd say.
Rob