The gestural approach pushes one to rely on "inner eye" strength:
you quickly capture the essence of the pose, accentuating movement, details
that make the pose unique or have somehow captured your eye. Your
rational brain doesn't get to interfere.
To paint figures in 15 - 60 seconds requires I be ready with pots of
color already mixed up. I work from light to dark, more water to less
water. I work on Arches 140 # cold press watercolor paper, which I
hold in an upright position to allow the colors to run down and blend,
diffuse in interesting ways.
I start with a warm neutral color, with lots of water, and a big brush to
capture the gestural motion of the pose. Strong light areas are left
white (untouched). This defines the warm / light side of the figure.
I then use a medium brush with a cool color, typically manganese blue as
I like the way it "granulates" when it moves / blends downward on the page.
This is used to define the cool side / shadow side of the figure,
immediately adding some dimension.
Lastly, I use a smaller round brush, with a more saturated cool color
pigment, usually ultramarine blue or cobalt blue, and paint in gestural
lines. Where the underlying figure is already wet, the line diffuses
into the body. Where it hits dry paper, it leaves a defining sharp
edge. I love both aspects of this line.