PCB Design Problem for a Beginner

Good day, all
This is my first attempt at doing this. I want to try my hand at creating a consolidate PCB. Also I am using Eagle for this, again a first time user.
My Goal: a single compact PCB with the Atmega32u4 & BNO080 connected together via I2C, an ICSP header for programming the 32u4, a buzzer as the output, and two 2032 coin cells to drive it. This will be a 3.3V board.

Would someone be willing to review my schematic for errors/omissions?

Schematic source: https://drive.google.com/file/d/1AgdHB90ZMS1znvGxiX98ocs4P3MT2aOb/view
Atmega32u4 datasheet:
https://www.apogeeweb.net/productdetail/Microchip-Technology-ATMEGA32U4-AUR-u01aGWBu