So, I then took the advice from a friend(Scott Quick), found the work of an artist who works digitally, and used their work to learn. Most recently I have taken a liking to Daarken's work, and used this knight from his website as a starting point.
From here I did a value study of the breast plate in order to put it into a form that I can understand.
And this is the final study of digital paint, color, and light.
This was much smoother of a process than I have had in the past, which is a bit relieving. I will in fact be spending more time trying to understand how to portray form and light in a digital environment.