A surrealist digital illustration in a flat vector art style with grainy textures, depicting stylized jellyfish floating underwater in an ethereal gradient blue aquatic environment, each with thick black outlines and vibrant lilac accents on their bell shapes, anchored by a central jellyfish with cascading tentacles; bioluminescent patterns adorn dark rocky outcrops, rendered with depth-of-field clarity variation, while caustic light ripples dance across sandy floors and rocks in high-key yellow hues, all illuminated by cinematic lighting that reflects off the water surface above, using a 35mm lens perspective blended with graphic novel bold line work and neon violet highlights for visual pop, preserving high contrast and pale gradient blue tones throughout.