I really liked this demo. The dialogue options were fun and really let you give the characters personalities. I look forward to seeing this project grow.
One bug I noticed is I think it is showing Marge's character portrait during what is suppose to be some of Caleb's dialogue.
One other thing is when I downloaded the Windows demo and tried to run it I got an error saying the Mono.dll was not found. I work with unity as well so I just copied the Mono.dll from a build of a personal project and then the demo worked but you probably want to double check the zip.