I also agree with EWG because horses were used by a several of the combatants in WW2. And not just including the German and Soviet forces. So seeing horses on the battlefield is not at all unreasonable, just not well known to most modellers/gamers.
That being said, it would be nice to see more angles of the horse model. The almost top down look is useful, but I would like to see side and front views, or as "uvs" says, "a more human eye level view".
I also agree that a 6' (182cm) human for scale would be good, but it needs to be noted that horses come in several heights. Typically from 10 to 18 hands - keeping in mind that horses are traditionally measured in "hands". One "hand" is equal to 4" (10.16cm), so a 14 hand horse is about 56" (142.24cm) tall from the ground to the highest point of the horse's withers.