Artist and body painter Shannon Holt shares images of her insanely detailed paintings done on human skin.

Her canvas - the human body. Her tools - sponges, brushes and a special make-up based paint that covers every part of a person, imperfections and all.

With celebrities singing the praises of full-body MRI scans, a growing number of people are coughing up the cash for the preventive measure, but is the peace of mind worth the hefty price tag?