Great job with these figures.
I've had a friend print some for me at 28mm scale and they fit rather nicely with Warhammer troops on 20mm bases.
As far as STLs go, these are easily the best dwarfs out there.
My only complaint is that they're VERY Viking/Norse themed and that they always have short sleeves.
Looking at yours though, I might ask my friend to print me a ballista as well.