Amir doet een radslag zo glad als een boter aap tegen Joris aan (daar komt de aap ui de mouw)
Amir is doing a cartwheel as smooth as a butter monkey against Joris (there comes the monkey out of the sleeve).
Translated and detailed:
Amir, a young man with brown hair and a red shirt, is doing a fluid cartwheel on a green grassy field. His movement is as smooth as a monkey slicked in butter, suggesting a high level of athleticism. Close by, Joris, a taller man with blonde hair and a blue shirt, stands watching in amazement. A monkey, perhaps a symbol or physical embodiment of surprise or secret, comes out from Joris' rolled-back sleeve. The monkey is small, almost like a squirrel monkey, with a curious look in its eyes as it emerges. The sky