FantasyVR360 of grand dungeon master's castle, ultra high-resolution, fantasy-magic theme. Expansive interior/exterior, maze-like corridors, courtyards, looming towers, cryptic passages. Surreal garden, medieval architecture. VR360 cosmos-themed skyline, thousands of sparkling stars, swirling nebulae, distant planets, streaking comets. Arcane flying dragon silhouette, deep