Encountering Santa Claus

Generate a festive Christmas group photo, a half-body shot, with the subjects standing next to a friendly Santa Claus. Both should be holding an elegantly wrapped green gift box, interacting intimately and naturally, and smiling at the camera. The background should include a beautifully decorated Christmas tree and a textured deep red backdrop, using warm, bright studio lighting to ensure soft lighting on the subjects' faces and vibrant, saturated colors.