You're going at this completely backwards. Show some concept art or some concept designs and try to get people interested that way.
Also what is the rest of the team like? What skill sets do they have? Can you show any of their stuff. It doesn't seem to me like you're doing a good job of wooing us.
FWIW I think you would have an easier time highlighting your late Uncle's music with visuals from a modern engine.
For others interested: https://www.patreon.com/rizzoisland
^ this is the project I assume you're working on. Good luck, it's not my cup of tea.