Retro Atomic Age Happy Labor Day シーズンポストカード

This cheerful Labor Day design blends playful mid-century Atomic Age style with warm, handmade charm. Set on a lightly textured cream background, bold retro typography announces “Happy Labor Day” amid colorful geometric shapes, starbursts, and atomic motifs. Thoughtful details—crossed tools tied with rope, a woven basket of daisies, and seaside accents like shells and a starfish—symbolize both the effort of work and the joy of rest. The lively color palette of teal, mustard, orange, and soft neutrals gives the artwork a fun, optimistic feel with a modern-vintage vibe.