Design project

We require a video animator for a long term project. We intend to create 3-4 short promotional videos every month with the frequency of 1 video per week. The video script and ideas will be provided. The video will consist of informational content with simpler animations. The video length would be 60-90 seconds.  Here is sample video and we would be needing similar videos but with much better design, subtle in approach and with nice subtle music. [login to view URL] We are looking for video making expert that can provide us with the required promotional videos on regular basis.