Neo-Psychedelic

Neo-psychedelic poster illustration: hyper-saturated clashing colour at glowing blacklight intensity across the full spectrum. Flowing organic kaleidoscopic linework and concentric swirls, rubber-like distortions and morphing shapes, with ornate symmetrical or mandala-like framing and dense overlapping pattern. Heavy black ink contouring laid over the saturated fills, plus airbrushed-looking gradients and luminous halos. Cosmic and optical motifs — concentric rings, starbursts, radiating bands. Maximal density and vibrating complementary contrasts; hallucinatory, decorative and anti-realistic rather than naturalistic. No readable lettering.