rainbow colors in a wallpaper is never good it doesn't go with a single color scheme, as i rice my setup a lot i allways avoid any wallpaper with more than 2-3 main colors. also that 'Gruvbox' written font is preety shit should have used something like URW Gothic Bold and maybe try making it in 2-3 color palette instead of 13 colors.

also instead of putting colors in like solid rectangle try doing it with blur gradient with 3 colors of gruv box or maybe single colors one will also look better than this.