Healing Watercolor World Water Day Poster

Full prompt

A healing watercolor illustration style promotional poster for World Water Day with an aspect ratio of 9:16. Centered in the composition, a pair of cupped hands gently cradles a large, crystalline, translucent water droplet enclosing a vibrant green sprout, with small droplets gently falling from its base. The background features a warm red-to-orange gradient silhouette of a majestic tree at the top, transitioning downward into a soft light blue to sky-blue gradient water surface adorned with floating transparent bubbles and subtle, faint 'WORLD WATER DAY' lettering. Clean white typographic elements are aligned along the central axis, displaying 'World Water Day' and '2026.3.22' at the top, alongside an inspiring water conservation slogan at the center. Soft, luminous lighting accentuates the balanced palette of warm red-orange, serene sky blues, fresh tender green, and pure white.