To be completely honest...
I don't think the website is very attractive, I mean there's nothing eye-catching on the homepage and from that I wouldn't bother browsing around the website (thats just me). I'm not sure if this is meant to be used for a portfolio or just a gallery to showcase all of your photography.. But some of the images in that cycle on your homepage i.e. the one of the dog, or the images of your garden (or field) look as if its just a gallery about your 'life,' the next thing I would expect to see is family photos... You've got a lot of Motorsport stuff, why not show that off? That would make you look a lot more interesting.
Why do you need to have the Navigation section twice? And as mentioned before, you don't need to tell people how to navigate around your website, its very clear.
If I were you, I would remove the navigation on the right hand side, put the News section in a thin banner below the links and enlarge the images to - a bit smaller than - the width of the green navigation banner... Show off your images more rather than all this unnecessary type.
In your Motorsport, and Other Photography section you have an inconsistency where the main image to the galleries are of a different size.
Within the gallery where you can view all the thumbnails, the images are spread out way too much, you could fit another image between the gap of each row... You need to do a lot of scrolling to view all of the images and in the gallery i'm looking at Landscape Photography: Snow theres quite a few 'duplicates' or very similar images which you could probably narrow down..
Hope you dont find what i've said offensive, but it's meant for you to take it as constructive criticism and I think you could still do a lot to the website. Some of what AWP said as well, but more indepth...