Древнее светящееся дерево среди парящих островов

gloomy world built on mud, dark green clay, and a small amount of stone, with a massive ancient tree at its center, glowing branches, and roots spreading across the entire width of the world, passing through floating islands. The surroundings are a greenish-yellow haze, and the entire world is dark, inhabited by entities infected with yellow crystals. Dark, eerie, captivating, atmospheric, surreal, highly detailed, by concept artists and fantasy illustrators, high quality, ultra-detailed, 8K resolution, photorealistic