Aryn, YES, you can put more dolls on them. Small dolls would probably be fine, but for the costumes of the GOML's it doesnt leave much room. The doll on the lower level would stand "in front" of the doll on the higher level and it detracts from their costuming. I think it's because the GOML's costumes are so full.

You'd have to actually give it a try with the dolls you wanted to use. Since I have all 8 of the GOML's, I will put them on the side shelves of the 2 sets I have, and on the center piece of each, I might put Russian Princess Barbies that are collectibles for my dd. I'll have to see how they look.

Laurie