Prismfold Ribbon Atrium – Geometric Vector Abstraction

Create a refined 2D Illustration in Vector Illustration sub-style depicting a single abstract geometric ribbon sculpture inside a tall, softly rounded architectural arch. Three broad, continuous ribbon bands in muted coral, deep teal, and warm amber weave around one another in a graceful vertical arrangement, forming open loops and precise overlapping curves without becoming tangled. The ribbons appear suspended within the arch, with their lower curves hovering above a simple oval plinth. The architectural setting consists of a pale ivory background, a recessed sand-colored arch, and a flat terracotta floor plane. Use crisp Bézier curves, smooth solid color fills, carefully separated layers, and a restrained set of flat tonal shadow shapes to establish dimensional relationships without realistic material rendering. Maintain generous negative space around the sculpture, with the central composition occupying approximately seventy percent of the canvas height. Eye-level view with a natural 50 mm framing equivalent, balanced symmetry in the architectural enclosure, and subtly asymmetric ribbon intersections. Soft directional illumination from the upper left is represented exclusively by clean vector highlight and shadow regions. Sophisticated modern editorial poster aesthetic, consistent 2D vector construction, visually distinct silhouette, no outlines except where needed for shape separation. Single coherent scene, portrait orientation, 2:3 aspect ratio, approximately 1024x1536 pixels. No typography, symbols, signage, letters, numbers, branding, logos, or watermarks.