Spawn is right near a village with a blacksmith, chest contents shown, behind you is a mushroom, pale garden, woodland mansion. Small pit entrance near woodland mansion (entrance at pale garden snow part) to a huge cave system starting with Lush Caves (Huge!), then Dripstone one direction, Lush caves into a Mineshaft the other direction and I think it eventually leads to a ancient city (Huge!), although I have not found a direct route, I have gotten within 100 or so blocks
by infamousstacker