It's raining in New York City. My train won't leave Grand Central Terminal for another 45 minutes.
There are no benches in the main area. I sit on the terrazzo floor at the edge of one of the hallways. The window of a tourist booth glows in the semi-darkness.
The man inside the booth leans through the ornate grillwork to arrange his brochures. Tourists pause to take photos on selfie sticks or to point their cameras up toward the ceiling.
This video takes you there. I squeeze various gouache tube colors onto the mixing surface of the watercolor set: perylene maroon, viridian, cad yellow, cad red, raw sienna, and burnt umber, plus white.
On the train ride home I add some finishing touches, such as white gouache dots for the white light coming from the window.
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Previous post about Gouache Materials
Photos and history of Grand Central Terminal
Gouache in the Wild tutorial video