Yes, those are actual X-Rays by Veasey. He thinks, quite literally, that beauty is on the inside. The gallery website has other, better, images of his work.
Santos is a self-taught artist who spent his childhood in colonial Angola, the in Lisbon and finally in the 80s he came to the USA. His paintings are sharp and realistic when it comes to the individual forms (or components) of the work. But the whole is dream-like.