Hyoshido
Sometimes, he do miss
I see what you mean, I'll mess around with it sooner or later and see what I can add, definitely will add a little more white to the brighter side and possibly some slightly darker areas to the darker side of the mask.You can try adding another hue into it, maybe a tiny bit more contrast in the larger mask area.
I know this one's more saturated than what you're going for, but you can definitely vary the hue of things as well. That also helps them pop.
Thanks! Can't wait to see how more of your art comes out like :>