Envision a grand palace set amidst swirling cosmic colors of a nebula, its architecture blending intricate gothic spires with ethereal, fluid forms reminiscent of fantasy realms. Luminous crystals adorn the structures, reflecting a kaleidoscope of colors, while wispy clouds of stardust drift lazily around. The palace gardens bloom with otherworldly flora, glowing softly in the dim light, inviting adventurous spirits to explore this celestial haven.