Your green screen is looking great, except for one thing: the hair. It's blocky and sparkly and looks like a paper cutout. But why?
Chances are, it's because your screen isn't lit evenly! Don't feel bad about it; it's surprisingly hard to light a screen as evenly as it needs to be.
But after extensive Googling (as we are wont to do), we found what may be the perfect tool for this: an app called Greenscreener.