Vibrant hydrothermal sunset over an alien seabed, iridescent steam plumes refracting through mineral-rich waters, transitioning from abyssal ultramarine to superheated vermilion gradients. Art Nouveau-inspired bioluminescent tubeworms framing the composition, their organic curves mirroring swirling vent currents. Chromatic dispersion in sulfurous bubbles creates prismatic halos around black smoker silhouettes. 8k ultra-detailed rendering of extremophile flora with nacreous textures, backlit by magma fissures glowing through tectonic plates. Volumetric caustics dance across iridescent microbial mats, while supercritical fluid vortices scatter golden hour photons. Ethereal atmosphere blending deep-sea pressure gradients with surface sunset chromaticity, captured through a fisheye lens distorting hydrothermal spire formations. Metallic oxide deposits create natural vitreous finishes on basalt columns, reflecting both submarine geothermal glow and atmospheric twilight hues. Subtle pointillist technique in plankton blooms contrasts with bold ink-wash methane flares. Hyperrealistic water surface tension effects merge with stylized Art Nouveau border motifs, synthesizing deep time geological processes with ephemeral celestial alignment. <lora:CPA:0.5> <lora:Illustration concept Variant 3A:0.6> <lora:flux_floralizer:0.6> <lora:Illustration concept V1:0.2> <lora:artilands:0.2> <lora:flux_dev:1>