Detailed photo editing to achieve 100% transparent background

I have a picture of my daughter. The background needs to 100% removed whilst maintaining my daughters every detail \"in particular every strand of her hair needs to be kept\" The detail around her hair is very important. I will be overlaying your work onto different colored backgrounds so that cutting needs to be perfect \"especially around her hair\".

I've uploaded a low res image for you to view. A will send the exact same image only high res to the successful bidder.