A publishing contract between a publisher, a comic book artist, and a story content owner (from which the comic book story is derived) gives the artist a royalty of 35% of the total profits. The artist is a joint owner of the copyright with the publisher and story content owner.
However, for sale or licensing of the art for third-party use (e.g., video games, T-shirts), the artist gets a minimum of 2% and a maximum of 10%, depending on whether additional artwork is needed (10% if yes, 2% if no).
Is that considered a standard royalty rate for comic book artists for third-party derivative uses?
Also, the agreement is for 10 years. Typical?