"Original illustrations" refers to drawings or pictures that are unique and created by the original artist, not copied or imitated from others. Full definition
We also have a staff of artists who can create original illustrations and figures for your interior. (bookmasters.com)
Based on original illustrations, favorite vehicles are printed in bright, eye - catching colors. (potterybarnkids.com)
For instance, traditional fantasy covers tend to lean toward original illustration whereas urban fantasy covers tend toward stock photography. (draft2digital.com)