Android App Feature Tutorial Video Creation

I'm looking for a professional who can create a tutorial video for my Android mobile app. The purpose of this video is to introduce new features to our users.

Key Requirements:
- The video should effectively guide users on how to navigate the app and make the most of its new features.
- You should be able to incorporate transitions, app UI, and other graphics seamlessly.
- Experience in creating mobile app walkthroughs is a big plus.

Please, share your portfolio with similar projects.