Not Vital is a Swiss sculptor, house builder, painter, designer, etc. I am not going to try to explain; you can find out more at notvital.com.
Penck is a German painter, sculptor and print maker. He is originally from Dresden. His art, neo-expressionist, and not in line with what the East German authorities, was decidedly nonconformist. He, George Baselitz and others were proponents of "new figuration" as well as free speech (the latter likely causing more problems with the authorities than the former).