Vogue Williams has shared another sweet snap of her newborn son, Otto.The model and presenter, who gave birth to her third child in April, took to Instagram to mark three weeks since his birth.The snap shows her baby boy fast asleep and tucked up in blankets, with his hands in the air. She captioned the snap: "Three weeks with Otto" with a heart emoji. Vogue also took another snap of Otto, this time asleep in his pram while on a walk in the park, on her Stories.