Several Pieces Rejected Due to Similar Work of My Own Yet Nothing is Similar

The last few items have been rejected due to

"it's similar to another image(s) you've already uploaded"

How similar is similar? One of the images I don't have anything like it at all. It's a unicorn. I have a tiger and a peacock, but no unicorns. The closest resembles maybe is that the peacock is white but it doesn't have any of the unicorn rainbow colors. Some candy does, but it's candy.

Another image is a giant egg with Easter bunnies living inside, making baskets. I have Easter baskets and other Easter bunnies stuffed or scary, but nothing that resembles this.

Another is an image of 4 zombies. I only have one picture that isn't even remotely close to it, that is the closest and it isn't even a zombie nor is the color scheme or the artwork the same.

A coffee cup with an iris in it. I don't particularly like this one so I'm not mad about it but still, I have no other pictures with a coffee cup let alone with an eye in it and the color scheme is vastly different than anything else.

Yet I've had approved 4 different versions of crab cioppino with sourdough and wine that are very similar and all approved.

I'm lost. 🙂 Thanks 🙂