Prompt code:
A nostalgic retro-style t-shirt design inspired by vintage travel posters. The illustration features a classic beach scene with swaying palm trees, gentle waves rolling onto the shore, and a breathtaking sunset casting warm hues across the sky. The warm, muted color palette and light beige or off-white background evoke a sense of nostalgic relaxation and escapism. The overall design is reminiscent of a bygone era, capturing the essence of a carefree beach vacation.
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