Charlie Brown, Snoopy, Lucy van Pelt, Linus van Pelt, Sally Brown, Schroeder, Peppermint Patty, Marcie, kids, cartoon style, bright colors, smiling faces, simple outfits, casual atmosphere, sunny day, grassy lawn, white clouds, playful poses, holding baseballs, flying kites, reading books, eating sandwiches, playing pianos, sitting on benches.