Camera shy babies?

Charley
Hey everyone! Just wanted to see if anyone else had an experience with a camera (well....scan probe) shy baby? Every scan with my boy has been difficult to get pics from as he hides his face behind his hands (like the pic on the left). I'm still kind of amazed the detail of his face on the top right pic though (his nose and pouty lips). So yeah, how are you coping with not having "good" scan pics?