Nope, his face ain't pretty, the artist just took a random jewel brush and painted on his face, would have looked nice if they had drawn it themselves, the blending is unnatural as some jewels seems to have gone inside his eyes in few panels and looks quite painful to have so many jewels being pressed under the mask, they could have gone for a pattern atleast, it's all random and a very bad artistic choice as the bold red doesn't go with his blue hairs and make the jewel stick out like a sore thumb.