Pope Innocent X after Velasquez Pope Innocent X after Velasquez (detail).      I copied this head about 1983. In attempting to be faithful to Velasquez' technique, I ground dry pigment in linseed oil that had been cooked with verdigris. This produced a very fine oil that allowed application of very thin paint. The technique was reported by Jacques Maroger, who helped found the Schuler School in Baltimore where I trained during a summer session. I put this and the following pictures up on the web page because my son, who isn't here in Ohio, likes them.