Thinkcoffee Companion App UI Design

Hi, guys ! This is my first UI Design portfolio, so I think need some advices from the experts. I created this project in 2 days (8 effective hours), including making logo and vector components. I've been studying UI Design for 3 months, and I was a self-taught UI Designer.

The main software that I use to make this project's screen is Adobe XD. For the vector components and logo, I'm using CorelDRAW to create them, and the finishing using Adobe Photoshop. I am Indonesian, so pardon me if there are some mistakes on my English. Thank you very much !