30-60 Sec Graphics Animation Ad, for Kids Educational App

We have Kids educational app releasing new features, I need great animation graphics or 3d graphics, shows the power of the app and to let the user see new features, and the end of the clip should have the call of action to download

The video should show an iPad or iPhone screen demonstration the app screens

notes: No offer will be seen unless showing some samples of same work or your portfolio of similar projects