>>96350229
I have both frostgrave and perry minis. Frostgrave are a good deal more cartoony and perry a good deal more realistic proportioned. But they look decently close when on mass. Id say some parts are swappable, some parts arent.
Heres a comparison pic. I put out frostgrave models for some reason instead of oathmark, but they are the same scale and I believe same publisher (I checked and the oathmark human spearmen are the same proportions to the frostgrave knights)