Daily UI Challenge - #008 404 Page

Daily UI Challenge #008, 404 Page.
Today's challenge is making 404 page.
This web site is supposed to be made for finding planets in space just for fun.
I imagined the situation that user has lost in space on a way of finding planets, so I used the illustration that people are floating in space (illustration is a free material).
Then made a button to back to their home(top page)

Thanks for your comments and advice!