Hi Damien,
 
	Years ago, I took all your classes and followed your group on facebook forever. I have been using what you taught ever since, but this has me stumped! 
 
	On the left side of this photo, I would like to keep the chalk but have a black background. I have several images like this with different gymnasts. I know the answer may be, "get a wider backdrop" but this is what I have.  Hoping your photoshop genius has a easy-ish fix.
 
	Using Adobe Photoshop 2021