There are four individuals in the image. The person on the left is wearing a light blue shirt and dark pants, standing with their hands behind their back. The person in the center is dressed in a light-colored sweater over a white shirt and dark pants, holding a small object in their right hand. The person on the right is wearing a white lab coat and dark pants, standing with their hands by their sides. The person on the far left is wearing a light blue shirt and dark pants, standing with their hands behind their back.