Follow us on Itch. The 50$ page will get updated. To be honest, nobody had tried to do a " Kickstarter" on Itch.IO so It's very new for us too.
Just in case, be sure to activate your Itch email configuration in your Itch account Option so that Itch send you Email each time we update one of our reward page!! ( "New devlogs and updates from projects I follow and new uploads are added to something I brought or follow")
The 50$ Exhbitionnist page will get updated immediately at the end of the crowdfunding event. You'll get a special google form to send all your information and pictures!