Every angel is granted a seperate pocket dimension, known as a paradise, that they're free to use as they wish. Most angels live in their paradise.
The laws of physics don't really apply to paradises, since their owner can shape it any way they want. When an angel arrives in their paradise for the first time, it's usually a plain white space. If the owner had a strong idea of how they thought the afterlife should look before dying, it might also resemble that.
Since paradises are seperate dimensions it's possible for angels to cross to any place inside the area. If you're visiting someone elses paradise, it is however considered extremely rude to just pass right to their house.
The pocket dimensions that make up everyone's paradises are tied to the circle of the virtue their owner most resembles.