Cozy Rainy-Day Baby Milestone Portrait

Edit the provided photo into a high-quality, photorealistic ${age:4-month-old} baby milestone portrait. Preserve the baby's face, identity, smile, and recognizable features. Make the baby the clear focus, looking happy and comfortable, with a realistic, age-appropriate tummy-time pose: lying safely on his tummy, gently propped on a soft knitted cushion, hands resting forward, and smiling toward the camera.

Dress him in a cute pastel-blue raincoat with a tiny hood. Create a cozy rainy-season studio setup in soft pastel blue and white, with fluffy clouds, hanging raindrop decorations, a transparent umbrella, tiny blue rain boots, a small lantern, soft blankets, and other cute rainy-day props. Place a large, elegant milestone sign beside the baby that clearly reads “4 MONTHS,” decorated with a cute umbrella or raindrop motif.

Keep the baby's face, smile, and expression as the center of attention. Use soft natural lighting, a dreamy bokeh background, ultra-realistic details, and a high-end, Pinterest-inspired baby photography aesthetic. Compose as a close-up vertical portrait with the baby centered and props balanced around him. Use a 3:4 aspect ratio.