First time trying to make UI

I can make basic UI, but this is the first time I actually tried on UI.

Did I do good? What can I improve? What did I do wrong?

its a bit too empty

30 chairss

It’s a bit too empty on certain areas, mainly in the middle and on the sides I think certain elements can be scaled to be bigger to fill it up. You could maybe try organizing in a grid/column like way and overall try to make things symmetrical.