"Isometric concept art of a complet...

"Isometric concept art of a complete, fully enclosed 360-degree ruined Gothic boss arena, Frost-Bite Keep, with no edges cut off or cropped. The entire structure is a solid, self-contained build with no missing walls or holes in its outer layout, designed strictly within a maximum bounding size of 40x60x40 blocks. Built from deepslate bricks and blackstone, it features a clear arched stone gateway passage on the bottom left lit by cyan soul lanterns, leading into a circular stone courtyard with patches of blue ice. To the right, an elevated altar sits before a grand ruined archway. Clean line art, detailed pixel-art texturing, precise schematic blueprint layout, dark fantasy RPG asset style."