Gouache - render any subject as an opaque GOUACHE painting: bold flat color shapes, a matte chalky finish, thick opaque coverage, and rich mid-century-poster color. This is NOT translucent watercolor - it is thick, opaque, hand-painted gouache with confident flat shapes and decorative folk-poster flair. Landscapes, still life, animals, portraits, vehicles - everything comes out looking hand-painted. Trigger: gouache. Base: SDXL 1.0 (AlbedoBase XL and most SDXL checkpoints). Weight 0.85 (works 0.6-1.0; lower if it overpowers the scene). Euler a, 28-32 steps, CFG 5-6. 100% original style trained from scratch on my own generated dataset on an RTX 4090. Free to use, credit appreciated.