First, nice! Will go well with some other figs already available in 1/9. Would love to see it in 1/16 as well to go with the Andys M8
If you want to determine scale based on mm height, just divide 1800mm (a 6 ft tall fig in 1/1 scale) by the 200mm, and you get 9, so its 1/9 scale. 1/10th is 180mm tall. In reality, they are frequently (along with 1/8 scale) about the same size. Depends on sculptor. If this guy is indeed 200mm tall and in 1/10th, he would be rather tall. To the tune of 6'6" or almost 2 meters in new money.I'm betting 1/9 would be more accurate. The real guy looks on the small side to me