logitekg25 - I already fixed it, look at the post above you, edited it a bit later after you posted and yes, of course you can use it as your background.
DevilDare - Thanks for showing the errors. No it's not LFS fault, but that's also not blurs fault, it's my fault that I'm very lazy and I select and cut different parts of the picture too roughly and don't take too much time to do it neatly. And the result is that, when I add blur, those parts of the pictures look bad. And there is also original post, that you can compare, that AA/AF is almost to max.
Anyways, you can see a bit more fixed picture 2 posts above this.