robin_\(honkai:_star_rail\), stel

robin_\(honkai:_star_rail\), stelle_\(honkai:_star_rail\), two female characters stand on a stage within an opera house during a quiet morning. In the center of the stage stands a large magician's water escape tank—a rectangular transparent reinforced glass tank with an open top, no lid, filled with crystal clear water. It features a dark metal frame with brass bolts, with the water's surface visible and displaying gentle ripples and tiny bubbles. Robin, with her very long hair, wears a black jacket over a white sleeveless shirt, black high-waist pants, and a black choker. She stands with a light smile, looking at Stelle with a closed mouth. Stelle, with her grey hair in a "two side up" hairstyle adorned with a black hair bow, wears a frilled pink shirt under a black jacket, a black frilled skirt, black kneehighs, black footwear, and a black ribbon at her chest. She smiles with an open mouth, gazing toward the tank. The atmosphere is serene and detailed, capturing the anticipation of a performance in a high-quality, masterpiece illustration from the year 2025, with meticulous attention to lighting, textures, and the interplay of light on the water and glass.