Back with the release of Laravel 5.7, Steve Schoger created illustrations for the common error pages like 403, 404, 500, and 513. Each one was included in the core as an SVG and you can see what they look like below.
In a later Laravel release, these were removed from the core and now Laravel Collective has created a package so you can pull these back into your Laravel project. For complete information check out the GitHub repo.