Whimsical Vintage Halloween Stamp Collage

Design a whimsical vintage Halloween collage composed of illustrated postage stamps with scalloped edges, arranged in a playful grid. Each stamp features charmingly spooky, hand-drawn illustrations with a nostalgic gothic flair. Replace the traditional Halloween orange-and-black palette with a unique muted color scheme: dusty rose, antique gold, deep teal, faded olive green, soft bone white, and weathered plum. Include the following stamp illustrations: A mischievous jack-o'-lantern with curling vines and spiderwebs A sweet, wide-eyed ghost with a stitched patch on its sheet A bubbling cauldron of quirky, otherworldly mushrooms with staring eyes A sleek black cat with an oversized vintage ribbon A crumbling haunted Victorian mansion under a crescent moon An adorable floppy-eared ghost creature with a shy expression A whimsical skull with a tiny top hat beside a "Trick or Treat" sign. Frame the collection with a large, tattered bow at the top, giving the impression of an old Halloween gift or package. The entire artwork should evoke feelings of cozy spookiness, faded carnival posters, and storybook charm, using soft textures, subtle grunge effects, and vintage-inspired linework.