Thư viện prompt AI miễn phí cho người Việt

A vertical greeting card design in a soft, delicate watercolor painting style. In the lower half, an open crafted gift box rests on a pale wooden desk, containing a ceramic canister of traditional Vietnamese green tea, an elegant dark fountain pen, a kraft paper notebook tied with twine, and a few sprig accents of delicate yellow hoa điệp blossoms. Centered elegantly above the gift arrangement in flowing, refined calligraphy is the exact headline "Cảm ơn thầy cô" (do not draw the quotation marks). The upper third of the composition remains a clean, serene, off-white watercolor paper background with gentle pastel washes and ample negative space for custom text. Warm natural morning sunlight, gentle gradients, poetic and grateful atmosphere, completely free of any other letters, numbers, logos, or text.