very interestings subject for model. the colour shoulds be panzer gray if I remembers, yours is not. shoulds be more dark blueish. Too heavy on drybrushings, perhaps as you becomes better and more experencenced in hobby you will learn to use shading and such techniques on models to bring up highlights on serfaces. Many starting modelers use amerture techniques like you drybrushings, but that is okay as long as you learns and becomes more learned. cannot sees horn or notek or blackouts lights from fronts. ok job on tarp coverings spare tyer. Petrol cans are not accurate. model could have improved greatlie with uses of foto etch and maybe barel aftermarket kind. Colour of tyers also off, does not looks like rubber tyers of that peroid, too blackish. Germans rubbers were warmer blackish colours. Cannot see too many insides details. Paint works also looks a little grainy? why? maybe too much dry brushings with too much paints? notices places as that not look as well painted. Not bad otherwise. Maybe try and uses less glue next time on models. Tubes looks new and no rusts on them. Tell barb that it looks okay but needs some attentions to details. Materials for lookings at always good idea.

...... you will learn to use shading and such techniques on models to bring up highlights on serfaces.