Refining Edges

[scrivomcdivo]

I have a picture of my niece asleep sitting up with her head in her hands. I want to copy my nieces head and place it onto a background of clouds.

I've tried various tools to highlight my nieces head so as to move it onto a cloud background but the edges continually look rough and "strict".

What is the best way to kind of blend the edges into the clouded background so that the image looks more natural as opposed to super-imposed?

Thanks as always

 

[scrivomcdivo]

Problem solved - I have now discovered the delights of the "refine edge" icon