White-Robed Seated Galaxy Humanoid with Golden Halo AI Image Prompt

Vertical composition, dark tone. A humanoid figure wearing a white long robe and a pointed hat sits cross-legged, one hand propping the chin and resting on the leg, in a relaxed, contemplative pose. The body is composed of a galaxy/starry sky—deep blue-purple nebula slowly circulates within the torso, fine star points scattered throughout; the nebula edges peel and dissipate outward in wisps along the robe's contours; the form is unstable, as if gathering from the void and about to scatter at any moment. The white robe is like a semi-transparent vessel faintly revealing the inner starlight; beneath the hat brim there is no face, only a deeper void. Above the head floats a golden halo like a crown, not touching the head, pure gold, emitting a faint warm light that casts a thin golden line at the edge of the hat brim. Light source: the body itself = blue-purple cool light seeping from within; the golden halo = secondary warm light source from above. Cool tones dominant, gold as a restrained accent. Color gamut: deep-space black-indigo as the base 85%, nebula blue-purple cool tones within the body 12%, golden halo 3%. Large black + small high saturation. Texture: the nebula has a flowing feel like ink diffusing in water, not static. Edges have feibai-like wispy strands gradually fading. The image has slight grain. Background pure black, no extra elements.