I don’t know why I keep choosing paintings that I cannot identify for my “master copies”. LOL! This is a copy of an old painting, but I don’t know who did it or what it is called. I did this copy in oils with three colors: burnt umber, ivory black, and titanium white. I pulled up the picture on my tablet and just started slinging paint. I’m happy with it.
He sort of makes me think of the Count of Monte Cristo. What say you?
By the way, a grisaille is a grey scale painting that is done for values. If there are to be colors, it will usually be glazed. I don’t think I will be glazing this one. I might… I don’t know for sure….
I have always had more dread of a pen, a bottle of ink, and a sheet of paper than of a sword or pistol. — Alexandre Dumas, The Count of Monte Cristo
exists to create art which reflects the beauty and the glory of God, to use art to comfort and encourage people, and to inspire others to pursue the arts. 
I’m happy that you are happy with it. It looks really good. Count of Monte Cristo? I’m no so sure about that one. How about a young Sherlock Holmes?
I think you may be right. LOL