Colossal, ancient tree

Colossal, ancient tree with gnarled, dark bark and pale, ghostly foliage, dominates a vast, ethereal landscape, its massive, interwoven branches and roots forming a cathedral-like structure, under muted clouds, with a crumbling, futuristic city in the valley, featuring angular, metallic structures, in muted tones of sepia, beige, and gray, soft, reflective light casts subtle shadows, two figures stand near the water's edge, in a style blending Simon Stalenhag's realism, Ash Thorp's futuristic surrealism, and Noah Bradley's dreamlike fantasy, with detailed textures and depth.