不敢自專

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.

敢 = 乛 + 攵 + 耳 : Mnemonic symbol: 石敢当, stone tablet erected to ward off evil spirits.

Guy Fawkes erected a stone tablet to ward off evil spirits inside of the anthill, but as he was drinking at the bar he noticed how the stone tablet suddenly started moving all on its own and tried to cut off Guy's ear with a sickle. Consequently, Guy Fawkes takes a sledgehammer and destroys the stone tablet to be safe; he wouldn't dare to have another drink setting next to this weird tablet.

自 = 丶 + 目 : Mnemonic symbol: a hand mirror, which someone uses to look at themselves.

The Eye of Providence (目) is looking at itself (自) in a handheld mirror (自) in the space station's bathroom (Ø4). It think it's indeed looking very good, since Zorro (z) attached a petal (丶) to its eye (目).

专 = 二 + ㇉ + ㇏ : Let's say the expert is a scientist. Also, 专 reminds me a little bit of the wheelchair symbol. Thus I choose a scientist in a wheelchair as symbol for 专.

专 = 二 + ㇉ + ㇏ : In front of the anthill, the scientist and Julian Giant Squid are focused on one thing: Electrifying the wheelchair of the scientist. Deeply concentrated they connect a capacitor to the wheelchair, which indeed starts to move a little.