Vintage Mountain Autumn Stamp

One standalone premium DTF print graphic, 4500 × 5400 px, transparent background. Create an original oversized vintage postage-stamp illustration celebrating mountain autumn. Inside a scalloped antique postage-stamp silhouette, illustrate a peaceful alpine lake surrounded by amber aspens and dark evergreen pines, distant rust-and-gold mountains, two tiny Adirondack chairs beside the water and several drifting leaves. Integrate the exact wording “AUTUMN LOOKS GOOD UP HERE” into the artwork: “AUTUMN” in oversized flowing 1960s travel-poster script, “LOOKS GOOD” in small condensed capitals, and “UP HERE” in strong vintage slab serif. Add small decorative postal cancellation lines in one upper corner, but NO real postal service logo, real stamp, state seal or brand. Palette: faded tomato red, burnt orange, mustard, pine green, teal blue, cream and espresso. Slight authentic screen-print texture contained strictly inside shapes, antique travel-postcard character, highly legible typography, illustrated rather than photorealistic, premium souvenir-shirt aesthetic. Isolated artwork only, clean transparent background, no shirt or mockup.