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Luminous Jellyfish Background in a Deep Blue Vertical Sea
underwater background · jellyfish · portrait artwork · deep blue
A dreamlike underwater background in 9:16 portrait orientation for a standalone portrait artwork. Place one translucent jellyfish in the lower middle, with its softly illuminated bell tilted slightly toward the left and fine tentacles trailing downward beyond the frame. Surround it with deep ocean blue that gradually darkens toward the upper edge, leaving substantial quiet water above. Render the subject through delicate digital painting, emphasizing glasslike transparency, restrained cyan bioluminescence, and subtle internal anatomy. A few tiny suspended particles may catch the light, but the water should remain uncluttered. Avoid additional animals, fantasy architecture, or intense neon effects. The composition should suggest weightless movement and peaceful depth while functioning as an atmospheric vertical background.