A vintage travel postcard style design, with illustrations of palm trees, a sandy beach, and clear skies, evoking a retro, carefree vacation vibe with pastel tones.
An Op Art illusionary grid of [SUBJECT], with geometric patterns creating optical illusions and a sense of depth and movement. Utilize a precise color scheme of [COLOR1], [COLOR2], and [COLOR3] to maximize the visual impact and sense of instability.
