I shaded the Mörser first in black from the rattle can and then counter-shaded using matt white in top areas with my AB. I then proceeded painting the interior oxide-red because this used to be the primer for all early-war vehicles. I presumed the interior did not take the final German-grey color. This is the result:
The build is now closing in to completion. Still to do is the track painting and weathering. I am thinking of a small base for it as well.
Hope you like, thanks for checking in!
Happy modeling, Michel.