ethereal oceanic fantasy,close-up: mermaid girl's hand delicately cradling a translucent ornate crystal orb,within the orb: highly detailed and realistic depiction of an underwater city of soaring crystal spires and opalescent domes,glowing luminescent sea-life drifting above buildings,orb has swirling,turbulent watery reflections obscuring and refracting light on its surface,in the foreground a mermaid girl with delicate porcelain skin and billowing sea-green hair looks at the orb with intense,slightly wistful expression,subtle glisten on her cheeks hinting at tears,distant horizon and sun setting over ocean waves behind,enchanting dreamlike atmosphere with focus on the mysterious glowing orb containing an intricate submerged realm (cityscape and reflections:1.4),(breathtakingly beautiful and realistic, almost 3d-like detail:1.4) (art-nouveau-inspired with glowing, bioluminescent details and subtle metallic sheen, Artgerm style) (ethereal lighting with soft, hazy colors, warm light of setting sun on mermaid,,,