photorealistic detailed digital illustration of a circle of standing stones, 8k, Subterranean rivers flowing through phosphorescent caves in the background, great lighting, ink art, line art, PENeonUV art by Artgerm and Alphonse Mucha  <lora:great_lighting:0.8> <lora:InkArtXL_1.2:0.7> <lora:PE_NeonUV Style:0.7>