Triangular Dusk

Standalone contemporary abstract optical artwork, vertical 9:16. An expansive matte dusk-blue field contains one compact triangular depth tunnel below centre and slightly left. Four thin, translucent triangular apertures diminish progressively toward a tiny dark triangular opening; slight lateral displacement and compressed spacing create convincing optical recession. The outer triangle occupies roughly one quarter of the image width. Edges are softly bevelled light, not drawn outlines, with restrained smoky cyan highlights fading into indigo. Subtle tonal repetition, smooth optical gradients, precise geometry and gently diffused luminosity. Keep the upper two thirds nearly uniform and empty. No surrounding objects, architectural setting or literal corridor; depth exists only as a nonfigurative optical illusion. Polished, quiet editorial finish. No rooms, mockups, people, text, logos or watermarks.