Congratulations on the very appealing PJ for Your figures and especially the vehicle. I would love to have the skills to do it that convincing - thank You for sharing it with us.
There is a slight "however"
I don't want to insinuate anything when manufactureres make and customers like to buy miniatures that are inspired by the uniform of the German army in WWII. I aknowledge that it makes sense to imply militaristic societies by this, so far OK for me.
The skull in the shield on the vehicle however is very clearly the badge of a military formation belonging to an outlawed nazi organization. The symbol is not only banned by German jurisdiction (here is a link)
https://en.wikipedia.org/wiki/Strafgesetzbuch_section_86abut also identifies a unit that was initially formed by the guards of concentration camps and that has quite a record of breach of laws against humanity.
I very much hope that the use of this badge on wargaming miniatures is only an insensitive mistake and misunderstanding, because I cannot recognize anything related to the depiction of history here.
I very much hope that noone who has seen this badge "in action" will ever be confronted again with seeing it in such a context, whether physically or on pictures