Gruesome Self Portrait (painted from life)

I very seldom have an opportunity to paint from life while using the tablet down at my computer desk. This particularly dark gruesome portrait is what I did today with a small hand held mirror pointed at me from the top of my desk top computer. I look positively evil. sorry. I think it's the intensity of concentration as I was trying to render this. lol

I wanted to do this in full color but once I was into it, I realized I was in a dark room wearing a black cap and grey shirt and pullover. I think my flesh was grey too but I computer enhansed that to make it look more human.