Pathfinder is a pretty good publisher for FRPG (fantasy role playing game) materials.  One of the things I've noticed over the past couple of years is that they option other writers and creators materials that are adapted to their specific system.  If they outsourced the cover art they may be just as aghast as you are when they are informed of the primary copyright infringement.  Who knows?  You might get a couple of cases of their materials as an apology.  That's what I got from TSR decades ago.