Back looks good. Ideally you should have pictures of the movement as well as the inner caseback but if there is any risk to scratching the watch by doing so then I would rather the watch not be opened. Servicing or cleaning of a watch typically included polishing the case unless instructions are given not to do so. You might want to take pictures of side views of the watch as well while you are at it. Keep in mind this is a watch that is not difficult to find so in order to get top dollar for it the condition has to be excellent (before polish not after polish!).
BTW, your existing photos are too overexposed so much so that the details of the watch and bracelet are washed out.