Ok, I've had a good look and here's my take on it, for what it's worth.
I don't like the logo far to the left on the homepage, it looks out of place. The problem you'll then have is a mass of white space to the left, so it may need a differently framed image.
Galleries - The frame needs to be centred, it looks a bit weird stuck to the left of the page like that. Also, for location shoots the first picture they see is of the boy and the steps, this would leave me cold as a potential customer. Although it's a good shot it does have an NSPCC feel to it, as do a few of them in the slideshow. I'll be honest, there's not a lot there that would make me want to book you for a portrait session, I'd get some nice colourful ones showing a few smiles etc for the first few images, draw the customer in.
Finally, what's your main target market? If it's weddings, you need a wedding picture on the homepage. If a bride clicks on your site and sees a studio shot for the first image, they'll click away. Can you have a slideshow of various pictures showcasing everything you do? If studio stuff is your main target then leave it as it is but people will associate you with whatever they see first, so if the studio picture is the first thing a bride sees, she'll think you do weddings on the side and that it's not your main business.
That's my take on it anyway. The site itself works fine, things do need to be straightened up a bit but it's easy to navigate. The only other thing is that your first blog post makes no sense at all, it's titled 'Studio shoot' then has something about the Welsh mountains, with no picture.
I hope this helps in some way
It should be what sells you
