2 min video for a mobile app overview

We need 2 min video featuring our new mobile app. The video tells a story about our app and shows how it works. The video will be a combination of animated characters, screenshots of our app with voiceover and musical background (latter is optional). The music needs to be royalty-free and the voiceover to be with American English male accent. The animated characters are a doctor, patient, ninja and a thief. There will be also an animated smartphone with a display showing the real screenshot of our app. We have good idea about the story and already have the script. The voiceover is about 260-280 words. We can share the script upon request. There are 7-8 different set-ups with the above characters that describe each feature. Estimated project time: 7-10 days.