It’s a good start but as other have mentioned, it needs a bit of work to polish things up. I agree with beattle that you should limit the number of posts. I would do maybe no more than three at a time.
There are a number of great plugins out there that you can use to enhance the user experience. At this time, I’m only inclined to stay on the first page. The idea id if you can keep someone looking at your page a minimum of 2 minutes, they’ll more than likely stay longer.
Find a theme that allows you to show larger images. 450px is too small for a photography blog. Pick a theme that best suits the type of images you would like to show. Sometimes, a really clean theme is all you need.
Add features that incorporates and makes use of social media. Simple FB Share is great as well as TweetMeme. Check those plugins out. It works very well and my blog (photo blog for that matter) gets tons of traffic because of it.
Good luck!
Rikki