Originally a graphite pencil sketch
Painted in Photoshop.
My interpretation of Lovecraft's Cthulhu.
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn. ("In his house at R'lyeh dead Cthulhu waits dreaming.")
"The Call of Cthulhu"
Artist note; Those are tube worms growing from the ocean floor.