A few years ago I wove a tapestry for my nephew with the design based on one of his photographs. Here it is, in process, and the finished tapestry below.
And, yes, the guitar strings are indeed guitar strings. They're couched onto the tapestry.
Both my niece and my nephew are quite good artists--Megan, with drawing and painting and critter creation; Jacob, with photography. He was in Combat Camera when in the Army. He was in Iraq for three tours, in fact, and some of the photos he took while there are breathtaking.