PERFECT idea to use the halftone screen for the racket! And that background texture--I get the feeling you lightly coated a tennis ball with ink and rolled it on paper in order to create it. Totally fab.
This is such a charming stripe - I just keep coming back to it time and time again - and I just noticed how there is this subtle optical illusion that you get at the yardage view (created by the change in the background colors of the stripes)... I think this would be great for long curtains in relatively small rooms because that illusion would add to the feeling of width.