It's basically a face that's pleasing to look at. It goes beyond bone strucutre; it means that the size shape and arrangement of your facial features (i.e eyes, nose, lips) is pleasing to most peoples eyes.
it's how well everything fits together, synonymous with proportion usually. a man with small features on a large face or vice versa will be said to lack harmony.
he has much better angularity than most people. his ethnic pube beard just softens it somewhat. his bone is thick and wide, so he's not as sharp and pointy as some of the more popular models. if he whitemaxes he can be a legit 8+