best quality,4k,8k,highres,masterpiece:1.2), ultra-detailed, (realistic,photorealistic,photo-realistic:1.37), Renaissance-style portrait, astronaut in space, detailed starry background, reflective helmet, golden reflective visor, antique space suit, celestial scenery, cosmic dust, illuminated constellations, ethereal glow, intricate space helmet design, elaborate space armor, intricate space suit details, majestic celestial bodies, vibrant star clusters, ornate astronaut helmet, intricate astronaut gloves, captivating astronaut expression, vintage space exploration, cosmic tranquility, luminous nebulae, dignified astronaut demeanor, breathtaking space backdrop.