The fish shaped fish bowl is cute, as long as you dont have a cat. It looks perfect for kitty to stick its head in to.
The bookends are too small and I'd be afraid of them crashing to the ground when someone removes a book from the shelf.
The wall hanging bowl is the nicest I think. Lalso the most realistic for a very small apartment or living space.
The shoes look ridiculous and very cruel. I don't think the fish could be real, they are too small themselves, and there is no way to properly clean and filter the water or feed them. I remember seeing pictures of crazy shoes like that from the 70s.
Fish do better in a larger aquarium with a filter for oxygen and other fish for company. Fish are group animals that swim in schools and not alone. The only fish you may want to seperate would be fighting fish.