Why not make your own original background?
Because it's very nice! But I will consider make one.
There are better ones, like this one: https://images.squarespace-cdn.com/content/v1/622d53491d0a694110f45742/66957195-eb5e-4787-89fd-845b5268f3fa/purple+ostriches+looking+at+a+computer.png?format=2500w
Source: https://egodeath.capital/blog/nostrica-the-start-of-something-big