Impressive, concept art painting, captivating, mermaids swimming within an enchanting underwater cave filled, bioluminous algae, iridescent crystals, magical, crystal cavern environment, shimmering, watery reflections, ethereal, otherworldly ambience, vivid colors, flowing lines, dream-like., Christmas lights, Red hue, Scandi, Depth of Field, Spectacular detail by: Jean Marc Nattier, Josan Gonzalez
Magical, crystal cavern ((Mermaids:1.5)), hidden gem. 