Postage Stamp Coloring Sheet

Create an original retro pop line art image for Northstar AI featuring twelve fictional postage stamps celebrating imaginary towns and local animals. Objective: Create a collectible-style printable with varied original mini-scenes. Composition: Three-by-four stamp grid with thick perforated borders and one large icon per stamp. Lighting and material treatment: Pure black line work on a clean white ground with uniform contrast and no tonal shading. Typography: do not include any words, letters, numbers or signatures. Use a deliberate hierarchy, clean edges, realistic shadows where appropriate, and enough negative space for editorial reuse. Output a polished 4:5 vertical composition unless the user specifies another ratio. Required constraints: No real currency value, country seal, copyrighted character, tiny text or copied stamp design. Do not add watermarks, fake certifications, unreadable filler text, duplicated objects, distorted anatomy, or unrequested logos. Preserve any uploaded product, person, or interface as the identity reference rather than redesigning it.