This is the "study" I did recently at a work shop at the Academy of Realist Art in Toronto. It is Saint Jerome writing, Caravaggio. The original painted in 1605 approx. is 44"/62" this one is much smaller 14"/18" so the detail isnt there. but the work shop was very useful, Caravaggio was "odd" ( if you consider a crazed murderer odd) in life and it reflected in his method and style.