Design a 'Tourism Illustration' themed image that paints a picture of a tranquil seaside escape with a fresh and clean aesthetic. Begin with a vast, soft-hued sky at dawn, seamlessly transitioning into the serene, clear sea at the horizon. The sandy foreground should be minimalist, with a sparing sprinkling of distinct seashells, subtly hinting at the ocean's presence. Dot the beach with a small cluster of dune flowers, their delicate beauty standing out against the untouched beach. To the edge