[Game] Flowy Beta: a game to help you manage anxiety/panic attacks

Hello everybody!
I am working with a few others developing an app called Flowy, a game that uses breathing retraining to combat the symptoms of panic attacks and anxiety. We have released a free beta version on the Google Play store for Android users; it consists of a tutorial exercise and light gameplay.
Images:
https://lh4.ggpht.com/TYGm0oCgOl-b1mDX4ZBzw-RvfYphdL9QHi3kX86USN6020TfThs2AVsSj8gQbDI9vSQ=h900-rw
https://lh4.ggpht.com/IXPlcy5uORczVYTswyquSmhEcgNDxBmVaOC2zM9Dl2RAPA6W_DHeBWbsJMcxAnPISA=h900-rw
https://lh4.ggpht.com/IGWtF4aHt5EhNtED0rFRxISm-5UanC3GWk7EKYIjsXKuvdqvKXdjCG1tj5uchdaLSQ=h900-rw

Link: https://play.google.com/store/apps/details?id=com.playlab.flowyfree&hl=en_GB

I'd love to hear thoughts and comments, so all feedback appreciated