Can I please get some feedback on my coding technique for object oriented php?

I'm looking at getting a job as a php developer. I have submitted tests, but not heard back from them. Can I please get some feedback on my coding technique for object oriented php?

Here is a test I was set and the code I submitted.

Can you please tell me where I'm going right and where I'm going wrong?

http://ift.tt/28M0h5h

Thanks Dave