自然の美しさを捉えた一枚の羽根が漂うデザイン壁紙

Vertical 9:16 phone wallpaper of a single feather drifting slowly, its fine barbs catching soft light against deep shadow, delicate iridescent fibers rendered in crisp detail, the feather angled low with quiet dark space overhead, muted teal and charcoal palette, delicate serene mood, no text, no logo, no watermark, no borders.