I hope you have the artist's permission, as this is almost certainly copyrighted.
That is a really good picture to use that way. If you look at my avatar, I did a much simpler picture for that quilt. The concept is fairly simple. Blow up the picure to the size you want it in the quilt. For this purpose, it is probably best to go to a specializing print shop and have them print a poster from your photo. Actually, you may want 2, one to cut up as templates. Remember to cut 1/4" outside your templates. If you have a 2nd copy, you can use it for layout, as you go. It really does not matter if the blowup is 'fuzzy'.
I made mine using the "poster" setting of my photo program. It took 16 sheets of copy paper. I have used this technique for several wall hangings. My technique was hand applique., with texturing added in the quilting. Because I can't paint or draw at all well, I might print the facess onto cloth, using Bubblejet.