The two shots below are of a beautiful Golden lion tamarin monkey and the final photo is a composite of the images. The composite was created with ON1 but could have also been done in any photo post-processing software that supports a layered workflow. 

When creating a photo composite the first thing to remember is to get photos that are either shot in sequence or under the same lighting conditions. Why, well because it will make the composite blending process much quicker and easy to accomplish.