Iridescent Cloud Crown Against a Blue Sky

A towering, vertically developed cumulus cloud fills the left side and center of the frame. Its massive clustered lobes are dense and softly shaded in blue-gray, with the cloud naturally cropped by the left and lower edges. A curved translucent veil clings closely to the cloud’s right rim, extending from the upper middle toward the lower middle and gradually narrowing. The veil carries a continuous iridescent transition through blue, cyan, green, yellow, orange, red, pink, and violet; it must remain attached to the cloud rather than becoming a separate, geometrically perfect rainbow. The background is an expansive cobalt-blue and clear blue sky with generous open space in the upper right. Only a few delicate pink-violet wisps appear near the top and lower right. Several clusters of nearly black leaves enter from the right edge as restrained foreground silhouettes, with crisp contours and no overlap across the iridescent focal area. Use a wide upward-looking view and an asymmetrical composition: the heavy cloud mass dominates the left half, while the luminous iridescent arc is the primary anchor slightly right of center. The sun is concealed behind the cloud, creating strong backlighting. Warm white rim light outlines the upper and right cloud edges, while the inner cloud retains soft blue-gray shadow detail. Keep the overall atmosphere cool blue, accented by warm white, orange-red, and rose light, with strong contrast against the dark foliage. Render the main cloud with dense cotton-like vapor clusters, layered bulges, and fine folds. Preserve curling featherlike and hair-fine strands along the illuminated rim. Give the iridescent veil a translucent membrane quality, a smooth spectral gradient, and tiny rippled, fibrous textures along its outer edge. Maintain the open blue sky, the scale of the left cloud mass, the height and placement of the iridescent arc, the concealed backlight, the right-edge foliage silhouettes, and visible filament detail inside the brightest highlights. The result should retain the look of realistic sky photography.