iOS Mobile UI Suggestion/Improvement/Redesign

MY INTRODUCTION My company is currently finishing up the iOS version of our application. The designs are based on two main principles: 1) Minimalism/Flat Designs, 2) Theme Consistency(such as colors, screen transitions, text placements...). There are two paths to this app - student and faculty path. Basically, this is a platform for student security and activity management in schools. WHAT I NEED FROM YOU As you may see, some UI elements may be lacking, maybe we can add more variation... We need your expertise to help us to perfect the UI of the app. TIMELINE(Apr 20 - Apr 21): The app is not complete. It will be fully completed by Apr 20th. Then, we need your suggestions by Apr 21. Basically, you have a day to make suggestions about UI elements ONLY about the app. So, the project will not start now. We will give you the app in the coming days.