A flat design of a landscape with a river and mountains

(vector art:1.5),a poster，In the background is a colorful landscape and a mountain, pale gradient design, minimal background, simple background, solid color background, beautiful gradient, iPhone 15 background, Vibrant colors with smooth gradients, Simple background, Simple and clean illustration, 4k high definition illustration wallpaper, poster background, by Cheng Jiasui, abstract scene design

worst quality, low quality, bad anatomy, bad hands, bad body, missing fingers, extra digit, fewer digits