Making of Dolly

I don't want to call it tutorial, because I can't descrive every little thing I made. But it should show the progress the painting made. The idea to paint an imaginated scene from the song "Dolly" of the italian singer Adriano Celentano was born some time ago. When I then saw my dog lying in this position, it was clear that it would be my model for the painting.
... here you can see the final painting: [link]