404 Error Page Design

Thanks for sub, Julia!

Your error page is clean and beautifully arranged. To mention also, I love the gradient!

Great job!

Haha such a funny illustration. Great job!

Great design Julia, this is on-brand and well done 👏

Wow, this is a really solid 404 page! The illustration is cute and works well with the theme—it immediately communicates the “lost in space” message while staying fun and on-brand.

One thing I’d suggest tweaking is the bright blue color used on the planet. Right now, it draws a lot of visual attention—more than the red “Go back” button, which should ideally be the primary focal point since it's the key action users are expected to take. The blue also feels slightly disconnected from the rest of the palette, which is otherwise really cohesive and space-themed.

Try using a more muted or slightly darker shade of blue that blends better with the background, or even adjust the saturation so that it doesn’t overpower the button. This small color balance adjustment will help guide the user’s eye more intuitively toward the action, keeping the visual hierarchy clear and maintaining the overall flow of the page.