之后

之 = 丶 + Z : Mnemonic symbol: Sooo sleepy... "zZz" (the character looks like a "Z"). James II of England (zh) fell asleep in front of the space station (Ø1). He sleeps on a big petal leaf (丶), making loud "zZz" (之) sounds.

后 = ⺁ + 𠮛 : Mnemonic symbol: Zenobia, Queen of Palmyra. Zenobia (后) and Hamlet (h) want to bake banana bread in the outhouse's bathroom (ou4), but they don't know how. Behind (后) a banana tree (⺁) they study a scroll (𠮛) on which the recipe is written.