Well, a little over a year later, it's finished!
I still have to figure out how to frame it, as I didn't leave a lot of excess cloth around the Nyan Cat. Oops. It will fit in an 8"x10" frame, so I just have to get creative with matting.
I do have a pattern made up for this larger Nyan Cat and border, but have to figure out how to have it to where people can download it. Because it might be too big to just have the image posted where they can right click it to save it.
My next Nyan Cat project will be this (Just the Nyan Cat, rainbow, and the purple pixels above the cat*):
This one is a bit unusual. The Nyan Cat site is currently down, but on this page (the 404 page), the background music is Lavender Town music from Pokemon. I will definitely use glow in the dark thread instead of white on this one.
* I found out that the purple pixels are the Missing No glitch from Pokemon Red and Blue. I didn't play much Pokemon, so didn't make the connection between the pixels and Lavender Town music.