Using the provided image of the subject, generate a high-fidelity image transforming the subject into an adorable and joyful toddler, aged approximately 18-24 months. The toddler should be playfully interacting with a variety of age-appropriate, classic toys such as brightly colored wooden blocks, a cuddly teddy bear, and a small pull-along animal. Set the scene within a beautifully lit, whimsical nursery, featuring soft pastel-colored walls, a cozy patterned rug, and child-friendly furniture. Ensure the lighting is warm and inviting, emanating from a nearby window, creating a serene and innocent atmosphere. Focus on capturing the natural expressions and movements of a young child at play, while subtly reflecting the discernible characteristics of the original subject.