cave with tree trunks on the surface of an alien planet. 3d fractal graphic, part of a huge fractal, calculated with mandelbulp 3d

abstract alien art artificial backdrop background banner broken city civilization computer concept cosmic cyberspace decorative design digital digitally drawing drendering element fantasy fiction flyer fractal future futuristc futuristic generated graphic intelligence mandelbrot mandelbulb order pattern planet science scjfi stranded surreal the tree universe