Some of these actually make sense as color names, even if they don't match the sample - "clay cow" is obviously a tan color, averaged between the two things, "rose colon" is obviously a similarly average red color. "Dry custard" is pretty straightforward (obviously the color of a custard powder before adding liquid) as is "blue child" (the color of an oxygen-deprived child). "Shy bather" is evocative, even if I'm not sure what color it evokes. "Barking white" seems like it should be a color, given all the minute variations of white with weird names, it fits right in. "Farty red" disturbs me deeply - it sounds like someone needs to see a doctor about that, immediately.