My first attempt

[Raising Hope]

I read the guide on how to use the background eraser and it seemed to do the job. Does anyone have any good tips on making it come out cleaner?

 

[RSEvolution]

The hair actually looks fairly clean. You can see that some strands are pixelated, and so is the shirt underneath the arm. Overall - looks good. Just a few adjustments to smooth out those edges, and you have yourself a good render.

I'd also crop out the really shadowed part near the left arm, or blend it in with the work you're applying it to.

 

Where can I find the program for this? I'd love to try it on some things.