Watercolor Father's Day Letter Writing Poster

Full prompt

A vertical 9:16 Father's Day illustrative poster created in a soft, minimalist watercolor style. The focal visual shows an elegant hand holding a classic fountain pen, writing emotional lines of gratitude onto textured stationery emerging from an open envelope. Affixed to the corner is an illustrated vintage stamp depicting the tender silhouette of a father and child. The subtle cream and beige gradient background is framed with warm floral accents including sunflowers, latte-toned roses, and clean floating speech-bubble shapes. Warm earth tones of hazel, beige, and soft gold create a nostalgic, deeply touching atmosphere.