复古迷幻风格沙漠海报

Goal: Create a wide vintage 1970s psychedelic desert advertising poster collage for {argument name="brand name" default="PromptBase"}, combining retro concert-poster typography, surreal American Southwest landscapes, and bold premium-prompt marketing copy.

Canvas: Horizontal 16:9 poster, warm aged print texture, thick rounded black border, orange paper grain, distressed ink, symmetrical decorative framing. Use a saturated palette of burnt orange, mustard yellow, teal green, faded red, black ink, and cream.

Layout: Divide the poster into exactly 5 main visual areas: 1 large central ornate brand badge, 1 upper-left desert sunset panel, 1 lower-left desert caravan panel, 1 upper-right concert-poster panel, and 1 lower-right cosmic highway panel. All panels should have rounded corners, heavy black outlines, hand-drawn ornamental dividers, floral accents, stars, dots, scrollwork, and screen-printed imperfections.

Central subject: In the middle, create a large black ornamental label with cream and orange outlines. At the top of the badge place a cream ribbon reading "ONLY ON" in red western serif letters. Below it, set the main brand text as {argument name="brand name" default="PromptBase"} in huge cream vintage slab-serif lettering with orange shadowing. Under that, add two stacked taglines: {argument name="tagline line one" default="PREMIUM AI PROMPTS"} in teal block letters and {argument name="tagline line two" default="FOR STUNNING IMAGES"} in cream letters. Add small stars, a tiny sun icon, curved flourishes, and a circular sunset medallion at the bottom center containing a black cactus silhouette.

Panel details: Upper-left panel shows a huge striped orange sun over a desert canyon, red cliffs, mesas, a tiny cowboy on horseback at the far left, teal-and-orange smoky psychedelic sky, and a small retro sign reading "BEYOND THE SUN" with smaller text "THERE IS + STILL TOMORROW". Lower-left panel shows a surreal desert campsite with exactly 3 vertically aligned suns in the sky, exactly 4 floating rocks, a silver-and-orange vintage trailer, tall saguaro cactus, prickly pear plants, mesas, and a curved title banner reading {argument name="left panel title" default="TWIN SUNS"}; below it add "DESERT DREAMS" and tiny text "MYSTERIES BEYOND • WONDERS WITHIN". Upper-right panel is a psychedelic gig poster titled {argument name="right panel title" default="DESERT DAWN"} in big arched green letters, with small subtitle "LIVE UNDER THE ENDLESS SUN"; include a giant cactus-hand rock formation in front of a striped sun, winding river or road, saguaro silhouettes, two circular info badges reading "SAT. JUNE 21 1974" and "RED ROCKS AMPHITHEATRE MORRISON COLORADO", and a bottom band strip listing exactly 4 acts: "THE SKYRIDERS", "FAT TUESDAY", "SLOW BURN", and "SONS OF ZUMA". Lower-right panel shows a straight black highway with yellow center lines leading into a huge teal planet or moon on the horizon, surrounded by concentric swirling yellow-orange cloud rings, rolling red-and-orange desert hills, distant mesas, and a tiny car driving away.

Visual style: Hand-illustrated retro screenprint, psychedelic western poster art, slightly uneven registration, halftone grain, distressed edges, bold black contour lines, ornate 70s lettering, high contrast, maximal but balanced composition.

Constraints: Keep the poster text legible and arranged as described, include exactly 5 main visual areas, exactly 3 suns and 4 floating rocks in the lower-left panel, exactly 4 band names in the upper-right strip, no photorealism, no modern UI, no watermark.