@jibberthehut So the larger frame is from Amazon, and I got it awhile ago when I had 2 out of the three pieces. It didn't come in a smaller size, but I wasn't necessarily planning to get more cats (and then I did, because I love @Crawfish's work and wanted to get Galen riding a shark for his player).
I got a float frame because I didn't want to deal with matting or color matching. And also, I really like the look of float frames and have some in other rooms. And for multiple pieces in the same frame, float frames are fantastic.
And then I got my third piece in the mail yesterday, and I was like, "Hmm, I'm sure that frame I bought earlier comes in a smaller size." WRONG.
As it turns out, it is difficult to find a smallish float frame. To find one in white is nigh impossible. Couldn't find one on Amazon. Ended up just googling for frames for sale. I ended up buying this one on sale from Michael's, which necessitated a trip to the store to pick it up, because they wanted more than the cost of the frame to ship it to me. Okay, fine. It's a 10 minute drive.
Except that it did not come with hanging hardware, because although the online description listed it as perfect for desk or wall, they did not provide a means for getting it to stay on the wall. Luckily, I had some hanging brackets, which I attached to the back of the frame.
So, larger float frame: https://smile.amazon.com/gp/product/B08GSKZC14/ -- easy to hang, 12 x 14, $20.
Smaller float frame: https://www.michaels.com/studio-decor-expressions-float-frame/10156614.html -- not so easy to hang, 6 x 8, $8.49.