A simulation of a shopping cart project. Add remove products to a pre-set shopping cart (Use of variables and States)

show animaition (tap&scroll)

Hi I tried imitating the Trello's interaction to move tiles/cards between different lists.

It's an app designed to give Landlords of residential properties the tools they need to let and manage their own properties without the need for an agent. I'm struggling a bit with the UX and creating a professional looking design. Any advice would be appreciated! (It's unfinished by the way)