Design a Website Mockup using Startup Framework

Hello, We are preparing to develop a new startup video sharing website and are looking for an experienced web designer to design an HTML/CSS/Bootstrap mockup. We need a modern responsive website mockup that our programmer can develop the backend for. Here are the main elements: Login & Signup Video Upload Screens Filterable Video gallery with loading as you scroll Member account pages Typical website pages (about, terms, privacy, contact, rules, etc) I have purchased the startup framework from [login to view URL] because I like some of their design elements, this can be used, however, it is not a requirement. [login to view URL] Selected designer will be asked to sign a NDA and will then be provided further details about the project. DESIGNERS ONLY... I AM NOT LOOKING FOR A PROGRAMMER AT THIS POINT.