For those people that may be looking to get into licensing your images, here are a few resources that you may find helpful:
COPYRIGHT BASICS:
What to Charge for Art Licensing – Royalties Advances and Flat Fees by Maria Brophy
SAMPLE LICENSING AGREEMENT:
http://mag.orangenius.com/wp-content/uploads/2017/08/Artist-licensing-agreement.pdf
KRESS FOUNDATION
Art Image Copyright and Licensing: Compilation and Summary of Museum Policies
http://www.kressfoundation.org/uploadedFiles/Sponsored_Research/Research/Crews_appendix_1a.pdf
MEMORIAL ART GALLERY ROCHESTER
RIGHTS AND REPRODUCTION FEE SCHEDULE
CHICAGO HISTORY MUSEUM
RIGHTS and REPRODUCTIONS IMAGE FEE SCHEDULE
The Guide To Pricing Commercial Photography Part 4: License Fees