Heartwarming Father’s Day watercolor illustration poster, featuring a loving father and his young son sitting closely together, smiling warmly at the camera. The father wears a dark casual shirt, the son wears a soft blue pajama set with a playful star pattern. Cozy emotional family bond, son leaning his head against his father's shoulder. Soft pastel color palette with sky blue, cream, beige, and subtle floral accents. Scrapbook-style background with handwritten notes, doodled hearts, stars, paper airplanes, torn paper elements, and heartfelt Father’s Day quotes. Vintage greeting card aesthetic, hand-painted watercolor texture, delicate brushstrokes, highly detailed realistic faces, warm golden lighting, sentimental atmosphere, elegant typography saying "Happy Father's Day", charming decorative borders, realistic yet artistic portrait, premium greeting card design, nostalgic, wholesome, high-resolution, soft shadows, beautiful composition, professional watercolor illustration, emotional storytelling, portrait orientation, 3:4 aspect ratio. Additional text elements: "Dad, my first hero and forever friend" "Thank you for always being there" "Best Dad Ever" "Love you Dad" Decorative elements: watercolor flowers, stars, hearts, handwritten doodles, vintage paper textures, scrapbook stickers, soft paint splashes, delicate botanical illustrations. Negative Prompt: blurry, low quality, distorted face, extra fingers, deformed hands, duplicate subjects, cropped face, bad anatomy, text errors, watermark, logo, oversaturated colors, harsh shadows, cartoon style, 3D render, low detail, unrealistic proportions, noisy image, pixelated, out of frame.