Six months ago I started doing value studies every morning before any 'real' drawing. Thirty minutes, grayscale only, from a photo reference. It sounded boring and I almost quit after week two. But by month three something had fundamentally changed about how I saw light.

The thing value studies teach you that color work can't: you can't hide poor tonal relationships behind a pretty hue. A muddy value structure looks muddy in grayscale and adding color just adds noise. Once I could see clearly in grayscale, my colors started working because the structure underneath them was sound.

I now do a quick grayscale thumb of any complex piece before I commit to color. Five minutes, rough shapes, just to confirm the light logic makes sense. It has nearly eliminated the 'this looks wrong but I can't figure out why' problem I used to spend hours on.