I liked the light tank, the Soviet soldiers, and the towering pine --- an unusual and refreshing vertical element in the (almost always) horizontal world of military dioramas.
Perhaps it's because I've been a writer all my life, but I tend to see every diorama as a story in miniature (or at least as one eventful page from that tale). Your diorama has me puzzled over two crucial questions.
First, what is the light German tank doing there? Perhaps there's a tiny hole from an antitank shell that I failed to see, but I have no clue why the tank is where it is.
If it ran out of fuel, or the engine malfunctioned, I'd expect to see a fuel can or two discarded in frustration, or ports to service the engine still ajar, with scattered tools nearby.
If the tank threw a track and Soviet infantry were approaching, I'd expect to see the broken tread unreeled, and hastily opened hatches left ajar where the crew bailed and took to their heels. If there was damage from enemy weapons, I'd expect to be able to detect some sign of it.
But, as it stands, it looks like it was parked there, still buttoned up for battle. Which bring me to my second question: what have the Soviet snipers seen that they are wandering with disinterest past a buttoned-up and apparently undamaged enemy tank? They're not likely to make it to Berlin with that level of attentiveness!
If the Soviets know the tank is empty --- maybe they saw the crew bail out (though it took time to close all the hatches for some reason) --- you'd think the two soldiers would search it for a bottle of schnapps, a military map, something to eat or a spare pair of boots. If they didn't see the crew bail out, or have some other reason to know it is abandoned, you'd think they'd drop a grenade inside to guarantee that it was no longer a threat.
There's nothing "wrong" with your diorama; these are just questions it bring to my (often warped) mind.
Did you have a story in mind when you built it? If so, please enlighten me. I may very well have missed a perfectly reasonable explanation that is evident to you ... and everyone else!
At any rate, nice work, Gary. I look forward to more!