What were you expecting? I know this is a famous experiment but i forgor the details...
Well, the top is Kiki (hence the spikiness) and the bottom is Bouba (who uses more rounded shapes)
But i feel like ki ki is loopy and round but bouba is said hard and fast (so with a bit of looking into thus I see that it depends on language which is weird cus I only speak english) I see ur reasoning tho