Working idea for children's book/show concept

I have been working on a story with a main character, setting and plot. Its all concept rough sketches and ideas as of now.
Main character is a boy who is a care taker of the animals in a zoo setting. The concept is within an educational theme and the interaction of the boy with the animals. The intent is for the boy to have different situations/scenarios with the animals and a teaching aspect.

I am working on the setting, animals, developing a story, protagonist and villain. The idea is to put together a solid well thought out pitch/media kit for promotional use. Mostly publishers and/or television possibly.

More to come soon.
-alejandro