You need to have at least 2 different series of photographs on your website. A series must have 10 images or more. While I will be grading the site on the design and ease of navigation, understand that weak photographs weaken the overall statement you are making with the website. As the saying goes, your site is only as strong as your weakest picture.
Also, it is important to understand that each series needs a statement of 75-125 words.