Yes, got some Japanese watercolour paper and ‘Gansai Tambi’ paints for Christmas from my sister. Turns out B5 is quite a nice size for paintings, also the paper quality is nice.
Note the multi-colouring of the elements of the pattern.
So using multiple colours is interesting, although the result is more uneven:
The pink/green one is especially nice, however I’m not sure about the end result for the hexagons.