Coding and redesigning a website, Need to know php css etc

Hello We need to redesign our mock-up to look more professional and then code it and make it fully functional, it will have 25-30 pages to code. We need it to be fully functional before we accept the work. To help us choose a right person please edit the attached mock-up to look professional and much higher quality, put your watermark on it. And tell us how you will be the best choice for our company.