I am still waiting on the pinbacks but BEHOLD I have a large set of Arteza gouache and the wrong Artxx order of two sets of Simtap 24 acrylic markers. Between those two things (and because I know for a fact that acrylic goes on perfectly over gouaches) I should be ready when the pinbacks arrive!!! I am DYING to get started! If I need individual Posca markers I can pick them up one at a time.
That original catscape is very cool. I can see why you’d like to do more.