This seems to be the closest resemblance to the in-game painting, but is too small and blurry for a print, I'd say.
Next is this, which is a really good fan-made paint onto canvas but unfortunately has some grain from the camera used to take the photograph.
If somebody has a better method of combining the two to give it the same kind of darker colour palette, or perhaps just has access to a higher resolution image, I'd really appreciate it! Perhaps from Masahiro Ito himself(?)
Here's my attempt so far..
