Very impressive and unsual peter keil painting, this abstract world was done in his Berlin studio! Great colors still vibrate on this old painting! Peter Keil is a German artist that focuses primarily on abstract expressionism. Keil painted with some of the greats including Joan Miró, Pablo Picasso and Andy Warhol, to name a few. This is interesting portrait piece full of interesting colors executed with acrylic on board. It is signed “P. Keil” in the lower left corner and comes with a Certificate of Authenticity from the artist! great size/colors on it.