Why Is The Colour On My Laptop Blurry Why Is My Laptop Background Big?

Why is my laptop background big? - why is the colour on my laptop blurry

I've seen, and my background is a picture I took
I is my universe very large and fuzzy --
I've tried to change the position, but nothing works
I love when you're in the middle with a color-plane order, but when I write this setting is to enlarge an image and fills the screen
Help meeee!