Thanks jijge! I have to admit that my pencil sketches don't actually have the range of values you're giving me credit for though. I just push the values with Photoshop before posting them to make them read better. Glad you received something out of it anyway.
Today I tried mixing 2D and 3D for the first time. I just started with a simple rectangular prism rendered in Blender and worked off of it in Photoshop. Nothing fancy.