Build a set of addon webpages to my existing site

All page are to be the same layout with different graphic and text. I will provide images and text, along with a detailed design doc. Total number of pages = about 15 at max They need to link to each other and back to the main site. Any example page is? <[login to view URL]> The new pages needs to have the same 'feel' as my existing site, but look a like the sample attached (in terms of layout). My current site [[login to view URL]][1]? This is really easy for any competent web developer