Are my gums receding bad? (photo)

From the picture you have provided, your canines present with a more severe recession compared to the rest of your lower front teeth.  This is partly because of the prominance of your canine roots , which makes the overlying bone and tissue very thin.  Therefore when brushing you have to use a soft tooth brush with proper upward technique not to traumatize these sites and to prevent further recession not very clear, but atleast for the front lower teeth you still have thick attached gum present.  But You need to get the canines checked by a periodontist. One indication of tissue graft surgery to cover the exposed roots is root sensitivity. So have a consult to discuss your options. 

You do have some gum recession which is minimal if you are in your 50's or 60's. If you are a in your 20's, it is more gum recession than there should be, so catch this in time and start using a very soft brush and brush very gently in those areas where there is gum recession. It is not how hard we brush our teeth that makes them clean, but how often and by doing it properly and taking enough time on all of our teeth. If these areas are sensitive, I would recommend you see a periodontist.