Sash and tassel Gwion Gwion rock paintings are ~ 12,000 years old and pretty detailed for "shadow drawings" *.
They're more than just stick figures, they detail ceremonial costumes quite well.
https://en.wikipedia.org/wiki/Gwion_Gwion_rock_paintings
* Dating the spectrum of paintings is broad.
Experimental OSL dates from a wasp nest overlaying a tassel Gwion Gwion figure has given a Pleistocene date of 17,500 ± 1,800 years BP. The academic community generally accepts 5,000 BP for the end of the artistic style. If the date ranges are correct, this may demonstrate that the Gwion Gwion tradition was produced for many millennia.