Act as a survivalist artist with extensive experience in dystopian landscapes. Create a vivid, highly detailed DALL-E image of a post-apocalyptic barter market set in a ruined city square. The scene should include [makeshift stalls cobbled together from scavenged materials], [survivors exchanging goods like canned food, water, and tools], and [a backdrop of crumbling skyscrapers overgrown with vegetation]. Add atmospheric details like [flickering lanterns], [dust-filled air], and [graffiti tags symbolizing remnants of past civilizations]. The mood should be tense yet hopeful, with survivors cautiously interacting under the shadow of a [partially collapsed monument] in the center of the square.