[the color spreads out in the water, but remains constrained to the circles she made, blue and green and yellow blooming out from where she touches the pigment to the water. huaisang nods, pleased.]

Like that! And if you add a color to the opposite side of the circle, they'll meet in the middle and blend together. Or...

[he wets the brush before touching it to the pigment, making a watery stroke of blue along another spare paper sheet-- it starts off bold, but fades into a wash of lighter color.]