Here's the nextsteps. A bit of highlighting, steel on the tracks and some patches of rust. I'm not sure how much will show in the photos.
I'll cut some paper flags and place them on the rear hull of a couple of tanks. But I don't really want to do the swastika in a white circle on a red background. I did start to wonder if there's any evidence of units using panels or flags with an enlarged version of their divisional sign. Since these tanks will represent the 14th and 24th panzer, I may well do a test of a red flag with the yellow symbol of the 14th, and maybe a yellow flag with the horse rider symbol for the 24th.