tropical palm trees, in the style of vector art with a soft green and blue gradient background, flat design aesthetic, retro poster vibe, simple shapes, bold lines, bright colors, vintage feel, tropical sunset theme, sun rays shining through the leaves, tropical vibes, beachy scene, stylish for phone wallpaper, high resolution, sharp focus, no blur, unique angle, close up shot, professional photography --ar 65:128  --s 250