Sorry, I had the sources on my page, I did most of the art.
Did you need a format like APA or MLA?
Music:
Cheery Monday: Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
Special Thanks to Pam for voicing the other character.
Additional Graphics I did not make:
Snakes: https://publicdomainvectors.org/en/free-clipart/Snake-Outline-Vector-Image/6366....
Blue City Scene: https://publicdomainvectors.org/en/free-clipart/Blue-city-scene-vector/1550.html