Using the provided 4D fetal ultrasound as the sole facial-structure reference, create a warm, photorealistic newborn baby portrait that plausibly predicts the baby's appearance after birth. Transform the ultrasound into a close-up studio-style newborn photo: the baby is lying down, softly wrapped in a cream knitted blanket, with fine dark newborn hair visible, warm beige bedding, gentle natural lighting, shallow depth of field, and a tender family-photo atmosphere. Preserve only the inferred head shape and facial proportions from the reference rather than the ultrasound texture. Place a centered solid privacy block over the baby's face, colored like warm skin tone, so the facial details are hidden. Style: {argument name="photo style" default="soft realistic newborn photography"}; blanket color: {argument name="blanket color" default="cream"}; hair color: {argument name="hair color" default="dark brown"}; lighting: {argument name="lighting" default="warm soft natural light"}.