The uniforms are too clean, the boots are too shiny, and the soles of the boots show no wear. It looks like they just came off of the parade field.
And what type of ground is it, is it rock ? or mud ? its grey in colour, never seen earth that colour. Seems to have some sort of ground cover growing on it. It would be nice to see a bit of the ground colour carried on to the soldiers boots. Never seen a Soviet helmet like that either, looks French ?