Swatch/ Mocking up watches for photographing

For taking my photos for submission I need some mock ups of the watches with the doodles on. As much as I would love to actually make them and buy the Swatch watches, I dont have that kind of money, so Im going to photoshop the watches with the doodles on then print them and cut them out. I have found a Swatch watch images from Google images that Im going to use and then place the doodles over them to show what the watch would look like if it was real.

This is the watch image that I'll be using.

These are what the watches look like mocked up, I'll then print these out and cut round them to place in the box for photographing.