Hello Gerry!

As usual, you always show us your outstanding spirit and also the work result! Very lovely vignette, just several minor things to solve, I think. Agree with others stated in your previous posted topic, just recover the helmet color into field green, in order to make your story in-line with the crewmen that originated from Heer, not SS.
Also for the exhaust pipe, it will be better to reduce the remnants of pastel chalk-granules-look-alike (Am I right with that word?

anything...) and make it flat rusted. The crewmen also will get their finest face if you correct their face shading. I think you don't wanna to make them bearded, right?

I apply the shading with very thin concentration of grey color (proportion between color and water, 80:20, respectively, also depending on your comfort manner)
But, the rest were very amazing. I admire your webbing idea and the weathering of the track, also for the interior. Keep up your very good work mate!

Kind regards from Indonesia

Garry