very cool effect, and nice recreation, I was actually thinking of doing that for my model too, but i wasn't able to. it's impressive how you managed to have extra texture space to greet us.
you have to make a texture that doesn't line up, either, bigger, smaller, or just a different shape. I made a 16x16 square and put it on a giant rectangle
love the textures! the brush looks cute and stylized and the dino fossil looks amazing, It's impressive, especially when I see the the wireframe, and realize how the texture gives it a ton of depth