I think most of your photos from 2013 are good but I have a few nit picks. Biggest one are the underexposed faces in a fair few photos which is a shame. I also agree with Thom that you need to be more selective about the photos you put on facebook. I would also consider removing or reediting a some of the older photos as they are suffering from things like over smoothing of skin, selective colouring, random photoshop filters, very orange skin tones (the maranda shoot in particular), snapshotiness that doesn’t belong a business page. The way the photos come up on the fb page are also rather haphazard. There is no consistency in the style which is a little jarring (the photos aren’t bad but they don’t go together) and looking further back there is an ad for a child care centre next to a photo of a scandily clad woman. Many of the older photos are nowhere near as well done as the stuff you are doing now and there are so many photos a customer looking on the webpage would be overwhelmed if they are using the fb page as a portfolio. Most of the 2012 photos seem like they should be on your private fb and not the business one.
Graffiti can make a great backdrop but I would prefer if it wasn’t in focus for a lot of those shots as it is distracting.