The Pz. IV is slightly wrong (the Schmalturm would be extremely hard to fit on it, and the suspension would be stressed too much, and it was never made, only plans were done, and Germans realized that even turret from Panther is too hard to fit on Pz. IV)
Not enough good things to say about this artwork. The tank in back of the Halftrack is a 'Paper Panzer' Concept vehicles made up by combining parts of varying different existing Panzers. Extremely cool and very well represented.
Very good depiction of the hellish conditions the German army endured. If this is 1941 then the soldiers don't have proper winter clothing and boots with metal soles that channel the cold as if they were barefoot. Great detail with the army and the bleack background. I recognize the half-track, but I'm not sure of the vehicle behind.