10551832
You say that, but I spent a good hour searching and while I was able to find an artist under that name in multiple locations I've yet to actually find the original image of the edited cover image here.

I've also seen people do things like, "Oh, it's derpi #20475345345" or whatever so it's not an actual link but lets us get there pretty easy. Though from what I've seen in the comics it seems like this image might not be on derpi? I dunno.

10678717
...never mind. I must've been tired last night or something. I found it in like 3 minutes of trying today, lol.