Due to my PS making my pocket too big during surgery, does this now mean he has to do a revision free of charge? (Photo)

I'm sorry to hear about your issue. Your concerns are certainly legitimate. The best course of action is a frank discussion with your surgeon. This is something every plastic surgeon experiences in their practice and he/she has very likely been in this situation before. Without much more detail regarding the procedure, your post op course and a true physical exam it is not possible to say that the surgeon or the dissection is what caused this. We certainly can see this result even with a perfect dissection. Finally, most practices have a policy regarding revisions that is discussed and/or provided in written form. You should review the information provided to you before surgery and discuss this with your surgeon. The good news is this can be corrected nicely. All the best.

In your photos your implants do appear to be somewhat laterally placed.  This can happen for several reasons -- preoperative anatomy, implant choice, surgical technique, and postoperative implant migration can all play a role in this kind of result.  To say that your surgeon is "at fault" may be an oversimplification of this complex issue.  An honest discussion with your surgeon is in order to voice your concerns and assess your options.  He/she may chose to offer a revision done for little or no fee, but is not required to do so.

and you need to find out what your surgeon's policy is.  It is completely acceptable that patients cover costs that the surgeon cannot control, such as the OR and anesthesia.  Most surgeons would revise this without a surgeon fee but not all surgeons think alike.  This is why its so important to know what the revision policy is prior to having surgery.  As for surgeon error, its hard to pin this on your surgeon.

I am sorry to hear about the problem you are experiencing after breast augmentation surgery. Based on your description and pictures, it seems like you are experiencing a breast implant displacement problem.Unfortunately, lateral displacement is a potential risk associated with breast surgery. It is not necessarily surgeon error.
Generally, the lateral breast implant displacement can be corrected using an internal suture technique, decreasing the size of the pockets and moving the implants toward the midline. Doing so will prevent the breast implants from migrating to the sides when you lie down and will help centralize the position on the breast mounds. In my practice, this repair is done with a 2 layered suture technique. The use of acellular dermal matrix is an option ( although not usually necessary) especially if significant implant rippling/palpability is present. I would suggest a calm/constructive conversation with your plastic surgeon. Hopefully, working together ( assuming your plastic surgeon does have a significant/demonstrable experience helping patients with revisionary breast surgery, you will come up with the best plan of action.
I hope this (and the attached link) helps.

Your implants are too lateral that is not the question.  The question would be were they created like that from day one or did a combination of your anatomy and lack of muscle release cause the problem.  If your rib cage angles backwards causing a V-shaped chest your breast will fall and stretch the lateral pocket.  If your medial pectoralis muscle was not adequately released, when you flex your pectoralis muscle it will push the implants laterally and cause the pocket laterally to stretch.  Finally are you wearing a support bra all the time?  If not your breast will fall to the side or down.  Looks like your breast has fallen down and to the side.  If this is corrected you may need additional material such as Seri to support the repair otherwise the same will happen a year or two down the line.  It would be more helpful to see immediately after the procedure photos as well as a progression of photos in the healing period. 

I agree with the previous comment about this being a multi-factorial problem. We all seek explanations when something is not exactly as we hoped.  Most surgeons will try to help you with this problem but to say they are to blame is indeed an over simplification at least, and possibly totally inaccurate.  Dr Green