Crystalline pyramid above an iridescent cosmic ocean

Close-up of the edge of a crystalline pyramid with a cosmic portal inside, suspended over an iridescent ocean of a chrome planet, radiating a kaleidoscope of colors onto a polished, mirrored surface, as the soft glow of a single light source casts an ethereal ambiance, accentuating the delicate interplay of light and shadow, and highlighting the precise, crystalline structure, set against a subtle, monochromatic backdrop of muted tones.