So I'm not really sure how uploading images here works since I'm not really well-versed in and licensing, copyright, and all that legal stuff. But would it be okay to use fanart for pages like this? Because I think this piece of Bug Fables fanart would be a perfect page image. And as seen here, I've gotten permission from the artist to use it provided that they're credited and a link is posted to their blog.
Topic on Talk:Wrathful Wasps
It is most definitely okay to use fanart - other pages already do.
And I've just told the server that you're a Confirmed user, so you now have the rights to be able to upload images. (I'm surprised that we didn't give you those rights when we gave you the "Autopatrolled" rights.)
Now, I'm going to ask you to read a wiki policy page: Uploading and Adding an Image to a Page. That page should answer all of your questions - if it doesn't, then feel free to ask on my User Talk page for more help.
And thank you for doing all of this work!
Got it! Thanks again!