Skull on my desk.

Here's a monochromatic technique that I use when I paint traditionally. Trying to make it work with Corel Painter doesn't translate 100% but it's pretty close. I recently worked on blocking out the glare from my monitor. I found that Painting digitally during the day time was a lot tougher than painting at night time. So I purchased some foamcore board and cut it to the size of my windows. Now its nightime all day in my studio.