There are four people visible in the image. They appear to be engaged in some form of construction or maintenance work. The person on the left is wearing a yellow helmet and appears to be standing near a pool of water. The person in the middle is also wearing a yellow helmet and seems to be working on a structure. The person on the right is also wearing a yellow helmet and appears to be holding a tool. The person on the far right is wearing a blue shirt and is standing near the pool.