A close up of Dragon shows nine of the capsule's 18 thrusters which are used for maneuvering on orbit as well as for slowing down during the de-orbit burn. Also visible in the middle of the photo is the open guidance, navigation and control door. The opening of the door shortly after launch was a key milestone during the flight giving SpaceX engineers the ability to use the onboard navigation equipment. The opening of the GNC door also exposes the grapple point where the Canadaarm2 attaches to Dragon.
The main attach point for the Dragon is at the bottom of the capsule in this photo. The metal ring is what locks with the ISS before the hatch is opened.
Photo: NASA