A cute cartoon-style puppy standing happily in front of a big bold Capital letter 'D' in a sunny green park. The puppy has bright, expressive eyes and a wagging tail, wearing a red collar with a gold tag. Colorful butterflies flutter around, and playful bones are scattered on the grass. The background has soft sunlight, bokeh light effects, and tall pine trees. The scene is joyful, kid-friendly, and vibrant, perfect for alphabet learning visuals.