Sheet music cabinet:
Sorry, but criteria 4 is "No overlapping solids".
Have a look at the "side slats" component, it overlaps the side rail, the side slat and the post. Same thing with the shelves and the back.
Media Center:
Meets the model criteria, although I have a woodworking type question about the bottom rails. They seem to be mortise and mortise not mortise and tenon joints. Is that a mistake or do you put in a seperate piece of wood to fill both holes?
Dresser:
It's a complex model with many pieces but what I looked at looked all good.
Youth desk:
Same issues as the music cabinet, in the same locations too, side rail, side slat and legs.
Night Stand:
At first the orbiting was weird, then I figured out you had the camera in parallel projection. There are gaps in the woodworking like between the bottom stetcher and the shelf but it meets the criteria.
Queens size bed:
The foot board and head board overlap both the rails. It does not stop it being in the collection but I thought you would like to know some of the components don't have material on all faces, for example the ends and bottom of the side rails.