SO, I just found out tonight, while browsing Google, that multiple of my works (over 20) were uploaded to a website called HiClipart without my permission, or even knowledge.
Thankfully, the site is also readily available to remove any art that was uploaded without the owner's permission, so I'm sending them an email with all the links to my works that are on there, along with a link to my gallery, and I'm hoping they will remove the images without incident.