The pose, the gaze, the colours and lighting... all make this look like a portrait by one of the Old Masters. Suprebly done. Love your Snapes. You draw his intense eyes and expressive hands especially well.
I love your Snapes so much. Its how I imagine him to look when I day dream about him or make a story up about him, I even attempted a sketch based on your Snapes, its his features. I am so in love with him. Do you use a model or make him up out of your head? If you use a model then he is damned sexy!!