The video shows a close-up of a person's fingernail as they apply green nail polish to it. The person uses a brush to carefully paint the green polish onto the nail, making sure to cover it evenly. The green polish is bright and glossy, and the person's nail is long and well-manicured. The background is blurred, but it appears to be a white surface, possibly a table or countertop. The person's hand is steady, and they seem to be experienced in applying nail polish.