Rare to the market!  This is major opportunity to own an original painting by Sienkiewicz, this one created for the cover of "Psycho-Paths" - a collection of stories edited by Robert Bloch, and published by Tor Books, 1991 (I show the cover for reference)  A great example of Bill's distinctive, illustrative style in acrylics and airbrush (yes those are intentional ink splatters, perfect for the image!) Painting is 21" x 12.5" on heavy drawing paper 23" x 14.5" and is signed and dated 1990 by the artist mid right center