it seems like you're licensing usage to them of your photos for their promotional use.
You mean a royalty-free, worldwide, license that has no end date, that allows them to reproduce and distribute your images for promotional and marketing purposes.
User Images and Content; Limited Licensed to Fracture. Fracture does not claim any permanent ownership of your Images or any other User Content you submit or make available for inclusion on the Service. However, by providing and uploading any Images or other User Content you grant to Fracture a royalty-free, worldwide, transferable limited license to: (i) host, display and organize the Images and User Content for operation and display of the Service; (ii) use, modify, reproduce and distribute your Images as necessary for fulfillment of your order and creation of Fractures based on your Image; and (iii) to reproduce and distribute your Images or images of the final product created from an Image for promotional and marketing purposes of Fracture, including inclusion in Fracture’s portfolio and product gallery. This license includes the Service, Fracture Site and any other sites owned, operated or affiliated with Fracture. Unless you have registered with Fracture to sell your Images on Fractures through the Service as an Artist, we will not resell or license your Images or User Content to any third party for commercial purposes without your consent.