Design a Website Mockup

I would need design for web site for which I have already programer, it is my friend. I need design of web page that hat the same navigation and architecture like that we site [login to view URL] , but I would not like that look in design point the same. It is for my company where we learn mostly children different sports, but It can not look like that is site only for children, because we sometime learn also adults skiing, swimming.. It also have to have to different design for winter time and summer time. In the winter there would be different pictures, colors and also different sport for learning. I summer there would be all that different. In attachent there is also logo of company