Majestic steampunk city carved inside a colossal ancient tree

Fantastical surreal otherworldly 3d bas-relief artwork in the style of Steampunk fantasy concept art. A majestic steampunk city built within the hollowed-out shell of a colossal, ancient tree, its branches adorned with brass gears and glowing clockwork mechanisms. Airships navigate the leafy canopy, and citizens in intricate Victorian attire traverse intricate bridges. The scene is lit by a distant misty sun providing an enchanted, unreal and dreamlike atmosphere. Cinematic lighting, 8k resolution, high quality. Bas-relief art.