Nice picture, gives a great overall view.
It's a pretty "bloody" diorama, but hey, war is hell and much blood is lost in those times.
I think the sherman looks great. Nice touch with the text on the side and the broken track.
Groundwork looks good to me too, especially for your second time. Lots of rubble, I like that, maybe you could make some higher hopes/piles ("hopen" in dutch) of rubble close to the buildings next time.
Overall looks good to me, keep it up, I'm sure we'll see lot's of nice work coming from your direction in the future!
Oh, forgot I think. Can I ask what theater of war this is? Which battle, which year, which front? Looks like Italy to me, but I just want to be sure...
Grt