This looks like an awesome idea (and execution). I think this choice of realistic proportions really hit the spot, making soldiers uncomfortably inhuman.
The tail animation when idle can easily mark soldiers that you can still move in this turn
I would pick larger font size for stats that change during game. I mean, it's not an issue that individual unit's mobility and max health stay small, as you will mostly watch them to compare your units. But the current moves, wound status, and probably ammo should be drawn with a well-defined font.
I do like the size of characters compared to screen size, but aren't you going to have an issue of battles where characters are more than one screen apart ? (Making it difficult to determine LOF and cover)

Any suggestions for what to use?