Not exactly gradients, but I come back to this Daniel Eatock print again and again anytime I need a burst of happiness.
Source: youmightfindyourselfDaniel Eatock — Pantone Pen Print, 2006
Source: thingsorganizedneatlySUBMISSION: Thomas Rentmeister, Untitled, 1985.
Porcelain mugs holding gradually more milk coffee.