Here, matching the motive “wreath” (I think Cyprus has olives?) and both flags have the Island of Cyprus on it.
Colours: white and orange.
Shape: Irregular.
We should make a catalog of shapes, maybe? Eventually?
I think we should have a rule that the match has to be different each time, ie. that if the first match was colour, the second match has to be shape or motif, and so on for the other modes.
So colour match, colour match would not be allowed, but colour, shape, colour or colour, motif, colour would.
Difficult, because there is hardly a flag in the world that does not use white, blue or red. Anyway, here’s Slovenia with the Triglav mountain on its crest.
Note that there is a Church of England and a Church of Scotland, but only a Church in Wales.
This is because the Anglican Church is the state church in England and [not] Scotland but not in Wales, the Church of Wales having been disestablished in 1920 following pressure from religious nonconformists.
Note that the Church of Scotland (called The Kirk) is Reformed (Calvinist) while the Anglican church is Scotland is the Scottish Episcopal Church (The English Kirk).
I think this might violate some rules. If we say East Turkestan matches the colour of the RoC, this one matches the colour of East Turkestan. If we say Tibet matches the white triangle shape, so does this one.
So maybe I’ll go with one of the Tibetan flag’s motives instead, which is the yin-yang, also present here on the flag of Mongolia: