Error page: upset Mac

I really enjoy working on those small illustrations for Flawless Feedback web-app error pages.

Would really love to hear any thoughts you have about this shot 🙂

Problem Description
We're working on a new feature of team invitation.
And as for the first iteration, the user has no options to create a new account via web-application unless invited to the project. They can create new accounts via macOS app only just for now. This little page is shown to the user when they accidentally appeared on Sign-Up page without invitation.

Tools
As always, I've used Sketch for actual illustration and After Effect for animation.