Oil, enamel, canvas, graphite, paper
...Your palette lacks value, darks and lights are indistinguishable. Paint the whites whiter and blacks blacker.' I passed down similar suggestions to students. I would say, 'Warm up the blacks. Cool off the whites.' I heard the words spoken from my mouth but they skewed tangentially from their intent. Words out of context can sound silly if not incredibly powerful.
Gray Chalk Flew Up, 2019, Oil on canvas, 24.25 x 24.25in
Pewter Line, 2019, Oil on canvas, 24.25 x 24.25in
Coppertone, 2019, oil on canvas, 24 1/4in x 24 1/4in