Health App design

This App learned Skillshare of Johny Vino.
https://skl.sh/2RkeehD
The lesson is easy to understand and compiled important for designer.
How to use the principle is very nice!
I was able to grasp from design to animation step by step.

This App:
Problem/Challenge: How might we encourage children and adolescents to signup for fitness app from a young age?

Thank you @Johny vino of class!
I want to see more your rough sketch and trick of principle!

Very thank you for reading!