Prompt
Center a single human silhouette in a 3:2 frame, full-length and upright, the figure occupying roughly the central 40–60% of the width and about half the height to preserve generous negative space around the shoulders and head.
Fill the silhouette with layered moving gradients that flow vertically and diagonally, blending deep teal, magenta, warm amber and violet into smooth bands with soft transitions and internal glow.
Treat the surrounding background as a dark deep-navy canvas that fills the outer 3:2 area, occupying roughly the outer 40% of the visual field and providing high contrast to the luminous interior.
Keep edges of the silhouette crisp and vector-smooth with a subtle inner blur halo and a faint vignette to focus the eye toward center.
Add a delicate paper-like microtexture confined to the background only, while the gradient planes inside the figure remain clean and luminous.
Design for screen wallpaper cropping within 3:2 so the figure's head sits in the upper center third and the lower body stays above the bottom edge, preserving equal horizontal margins for responsive crops.