Create a sign up page, modal, form, or app screen related to signing up for something. It could be for a volunteer event, contest registration, a giveaway, or anything you can image.
Design Changes:
Combine sign up and log in functionality, nudging up the title to improve hierarchy.
Adding a friendly introduction.
Adding a tinted background on the input field to improve hierarchy.
Adding colour to the CTA to show importance.
Reduce friction by introducing social sign in with Google or Apple
Make it softer using shadows and rounding the corners.