fantasy cave 3d model

Cave, that is both endless and finite because it's surrounded by the stars, void, and universe. Magical rivers flow through the bottom floor, made out of blue and golden sparkling qi. Floor is made out of small rocky formations, not necessarily in a symmetric fashion, rather randomized. There must be some cultivational decorations like totems of dragons, scriptures and similar. It must feel endless, mystic, fantasy, high quality.