This is a pretty neat idea, and, by how much layers this has, this becomes a perfect match for the theme.
I feel like the secondary pattern becomes a bit too detailed, the main pattern has a bigger resolution and somehow i felt it like two different resolutions at the same time, kind of similar to matching a 2x pixel art with a 3x pixel art, but, very pretty.
I liked that you can change colors too, like if you were using any app for drawing.