Theme: Oriental Zen minimalist poster
Style: High-contrast bright type
Subject: A vermilion koi fish leaping out of minimalist water
Mood/Theme: Vitality, agility, good luck, motion within stillness
Scene/Imagery: Peacock blue water, jade white negative space, leaping koi, a few splashes, very faint lotus leaf shadows
Composition/Space: Center-down composition, koi as main visual, water occupies bottom space, large area of bright negative space reserved at the top
Color Control: Jade white as background, peacock blue for water surface and distant air layers, vermilion only for the koi subject and small amount of water surface reflection; avoid the whole image turning blue or orange
Light/Texture: Bright natural light, light water reflection, rice paper texture, clear graininess
Aspect Ratio: 9:16
Additional Requirements: Koi should be simple and powerful, do not draw as complex schools of fish, overall fresh and lively but restrained, with an Oriental good luck poster feel