Minimalist Vector Father and Son Silhouette Poster

Full prompt

Father's Day poster in a crisp flat vector illustration style, framed in a 9:16 vertical composition. The backdrop transitions through a gradient from airy sky blue to soft lawn green, set above a textured green and white striped ground. In the center, dark blue silhouettes of a father and child hold hands as they walk forward, casting delicate reflections below, backed by stylized white mountain peaks, curving green waves, and drifting musical notes. The header displays bold white typography reading 'FATHER'S DAY', annotated with 'Steadfast as a mountain; deep and silent as the sea', alongside 'Happy Father's Day' and date '2026/06/21'. Bottom typography features 'Silent years, audible paternal love' alongside 'Happy Father's Day'. A bright, clean palette of azure, emerald, and white evoking an uplifting, heartwarming atmosphere.