Imaginary character illustrations being sent to "In Review" section waiting for model release

Hello everyone,

I have been uploading some illustrations lately, and some of them include visible faces, however, these faces are from imaginary people since they are illustrations, I am actually tagging them in category and keywords as "Illustrations" 

The only option available to solve the issue is a button where I can upload the model release form, however, since the model does not exist I am wondering if there is any other way to get this sorted out so the illustrations get approved.

Thank you,

Eduardo