I just did this right now. They look remarkably similar, no? I'm willing to bet they are brothers. Cor's nose is a bit thinner, and his ears stick out 更多 (how cute heheh). His eye shape is also slliiiightly different.
This Final 幻想 XV 照片 might contain
肖像, 爆头, 特写镜头, 特写, and 爆头特写.