Download the PSD
I strongly recommend you do what I did - that is, rotate the writing file so it's nice and straight, then crop it in a bit, then save it, before using it.
You MUST NOT COPY AND PASTE the writing file onto the photo. You MUST use File>Place, so that it comes in as a smart object. This is vital. As a smart object, you can rotate and warp the layer as often as you like, without losing the previous adjustments.