Hello,
This sounds like a rad opportunity, thanks for sharing it. I work in a bright and crazy style that might suit what you are looking for, which all of my work can be seen at shelbycriswell.com.
My current rate is $20/hr and I've provided milestones for the project to break down the price I've given you of $300. I also work extremely fast, so I can have artwork, branding, banner, avatar, etc. available in a few days because of my currently open schedule. I have past experience branding and making this kind of work for a music festival.
Thanks again for the opportunity,
Shelby