Hikari at sea

A petite girl with very long wavy lime-green hair and two waist-length side strands, golden eyes, pointed elf ears, a green halo above her head, and a black demon tail ending in a heart-spade tip, ao3 style, masterpiece, flat color, pastel colors, cotton colors, pale color, low saturation, soft light, soft color, soft shading, sharpness, masterpiece, summer beach, swimsuit, ocean waves, sunshine, holding ice cream, smiling, vacation atmosphere, blue sky, water splashes, anime summer illustration.