Build CREATIVE 50 sec explainer video animation for web STARTUP

We need someone with CREATIVE skills to create an engaging 50 seconds explainer/intro animation video with voice-over. The purpose of the video is to engage the end-user in trying our free service. Our startup enables users to create and share a personal simple beautiful html5 web page in seconds. It empowers users to personalize and beautify their message. No need for blogging or coding skills, no geeky web site builder tools, it's as simple as 1-2-3, it's fun and free. More detail about key aspects and features will be provided to awarded freelancer. We want you to UNDERSTAND our business and our vision in order to provide quality work. The video should send a CLEAR message, be FUN and yet PROFESSIONAL. After watching it users have to think of traditional ways of sharing stuff online as boring ... in this century, you can share stuff with a full-blown personal web page. We do NOT have a script for the story. We have ideas, but we want your creativity and expertise to build the story board. You need to provide the voice over and song (rights free). The video should be about 50 seconds long. Speaking voice of the video should be general US or British fluent accent. Realization time: ASAP. Please make sure to send a portfolio. Examples of videos we want ours to look like: [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL]