Brand radial stripe gradient poster design

Design a 3:4 vertical "radial stripe gradient" visual poster for [Brand / Product / Abstract Theme].

The background uses low-saturation sage green or gray-green; the overall image is quiet, restrained, and modern.

Set a single radial center at the bottom right of the image, with 12—18 fan-shaped color bands of increasing width extending towards the top left, occupying about 65% of the frame.

Some color bands are curved into concentric arcs, creating a spatial sense of paper folding, shutter structures, and optical ripples combined.

All color bands must maintain clear boundaries; do not use soft diffuse gradients.
Colors change step-by-step according to deep olive green, gray-green, and mist white, with the brightness difference between adjacent bands controlled at 5%—10%.

Only add a small amount of warm yellow or light apricot highlights at the radial center, with an area of no more than 5%, as a light source hint.

Materials can be represented as:
Matte coated paper, translucent resin flakes, screen printing ink, or thin paper art structures,
with slight thickness, small projections, and light surface grain.

Light shines obliquely from the bottom right, the shadow direction remains unified, and source-less luminescence is prohibited.

The title is placed in the blank area at the top left, using a medium-weight geometric sans-serif font;
Subtitles can be arranged along a circular arc;
Numbering, date, and parameter information use monospaced fonts.

Information hierarchy only retains three levels:
Main title
Core graphics
Micro-parameters

The whole is like a combination of modernist optical experiments, architectural shading structures, and high-end paper art posters.

Avoid:
Rainbow gradients
Liquid diffuse backgrounds
Metallic glares
Random ripples
Complex characters
Dense text
Unstructured abstract noise