Right now in the game we only have the 1x1 size which is nice for some animals like snakes but I think for Beetles and Spiders it should be smaller and for the iguanas it should be larger. My ideas are for a 2x1 exhibit with small monitor lizards, other lizards, alligator snapping turtle, etc. There should also be a 2x2 size one possibly for larger snakes, small crocodilians, and even small mammals and birds. I would also like to see smaller ones as well with spiders, insects, stick bugs, etc. this is very common in zoos, to have different sizes of exhibits and I would like to see it added to add some more realism in the game. Also I would like to see the different sizes more customizable as well.