...I've just had a look through your website, your flickr, and your facebook: and to be honest I'm not seeing anything so unique that someone taking a similar pose in the same location could be accused of "copying."
If you've seen this video before, don't spoil it. If you haven't: watch it and follow the instructions.
And if you have seen that video before, then watch this one instead:
You will always see what you focus on. You are looking at other peoples works and obsessing on the similarities. I'll be up front now and say you need to stop it. It is bad for business.
As a businessman you need to take a step back and look at things objectively: which to be honest can be very hard. I just read your bio and you said " brings a unique and creative style to his art". Well: I'm not seeing anything unique. You do great work. But you see yourself as unique but your body of work, IMHO anyway, looks like most other photographers work that shoots Seniors, Portraits and similar in the States. (Here in NZ if you shot Seniors you would be shooting 60 year olds!)
If you are losing business consider this: I just went to your pricing page and it looks like I can book you for a wedding or an engagement session: and thats it. There are lots of photographers out there. If you want a piece of the pie people need to be able to firstly find you and then book you. You need to stand out and you need to engage.
My normal question at this point is do you have a business and marketing plan? Because I would advise that you develop one. Figure out who your market is and how you intend to capture it. Redevelop your website, pricing, and marketing strategy accordingly. Doing these things will be infinitely more helpful to your business than obsessing over other photographers images.