I noticed that you use the eyedropper a lot. Do you prefer that to dodge and burn for shadows?

Yes. I recommend people not use that until they're at the very end of their rendering, because dodge and burn will take the saturation and the value of what's underneath and crank it up, so you could potentially, quote unquote, burn your image, and it won't be salvageable if you do it too much. But the eyedropper also keeps me within, I'm only using colors and values that are within this painting, so I know it won't be too dark or too bright when I paint something on top of it.