Could be Great
Very quick things that are absolute MUSTS for a 5 star rating.
Use the movement and manipulation that is becoming common in Quest Apps. As I use your app. my hands are up in the air like a boxer and I feel like I am typing and selecting with my wrists! Having to do wide mand motions just to move around room is ridiculous. Use the (or allow the use) of the joystick controls to walk / run and teleport through the room.
Integrate with more than just dropbox. I abandoned Dropbox over 10 years ago. Need Icloud and Onedrive integration to really kick things off.
Not necessary, but a real nice to have would be to change ligthing / illumination. I have some pictures that are very dark by themselves that would pop much better if I could turn on some kind of illumnation.