I saw Navajo-Churro sheep in the Hogle Zoo and thought they were pretty neat animals. Glad you enjoyed the plans. I would visit that zoo.
Sorry to nitpick here, but pelicans are likely to eat Pygmy geese, so probably not a good idea to keep them together. Also not safe to mix Sarus and Demoiselle a Cranes.
I thought about an Australian area but the zoo seemed pretty big as it was. I'm going over some other ideas in my head for a zoo and will definitely include an Australian section. The changes I would make for sure to this zoo would be separating demoiselle and sarus cranes and not having pygmy geese with the pelicans. I had no idea pelicans would eat birds like that. I would also include lion-tailed macaques in the Indian Subcontinent section.