high quality anime background, detailed webtoon background, vertical composition, vast deep navy night sky filled with countless small stars, soft dark clouds drifting around the edges, quiet mysterious atmosphere, enormous ancient magical doorway slowly materializing in the center of the night sky, the doorway is still closed, ornate celestial architecture, intricate silver-white engraved patterns, faint ethereal glow around the edges, subtle magical particles appearing around the doorway, monumental scale, dramatic perspective, cinematic lighting, clean detailed lineart, no characters, no people, no creatures, plain background composition
멩엥
