Collage and Montage

--> A collage is a form of art in which various materials such as photographs and pieces of paper or fabric are arranged and stuck to a backing.

Where-as a montage is the process or technique of selecting, editing, and piecing together separate images to form a single picture.

A copyright infringement is a violation of the rights secured by a copyright.

Royal free pictures are images that have no copyright, so the public can use them.