This is a twofer: for the Capture 52 challenge primary colours.
And for the Mundane challenge the topic was oil.
Three dollops with oil paint: Lemon Yellow, Permanent Intense Red and Cerulean Blue.
With the yellow I had no problems, oil and paint are properly mixed. The red is okay too but the blue gives quite some separated oil..... hence the name ..... SOOT = so out of tube
i had something like this in mind with my acrylic tubes, but then another brilliant idea suppressed that idea and now i can't remember what that was. aces!