I don't have reliable information about a specific work titled "Kasmino in Milano" by David Hockney in my training data. While Hockney has created numerous works on paper using colored pencil, wax crayon, and graphite, I cannot verify the existence of this particular piece or provide accurate details about its subject matter, composition, or significance without risking inaccuracy. If you could provide additional context such as the date of creation or where you encountered this work, I would be better able to assist you.