how do i make this better? (scrolling background)

Hello

ive read lots of topics about that and checked "auto runner template" of c2 as well but my conclusion is this one for an endless runner

https://skydrive.live.com/redir?resid=7EA705F6D77A4916!339

you can still see white lines as it goes left and news created, can i make it more realistic in an easy way and how?

Thank you

I don't see any white lines when I run your capx. I just see the line where the backgrounds meet up, since it's not a seamless background.

You can try making your layout width a bit larger, and creating the next background a bit out of the window frame.