Multi images

I am a sports photographer focusing mainly on tennis photography. I blend lots of photographs together using one image as a back ground and adding either 2 or three more using different layers. Sometimes I add 3 or 4 photographers onto a separate layer depending upon the images needed. The skill is to make it difficult for the customer to work out which was the original image. These images will then need to put onto canvas. I have attached an image to give you some idea of what I mean. This is a one of project but will lead to a lot more work in the near future. The images are printed at A3 A2 or A1 Let me hear from you Thanks Anthony