孤苦伶仃

孤 = 孑 + 瓜 : Gitta Giraffe (gu) is currently the space station's lone (孤) inhabitant. To feel less lonely (孤), she drew a mosquito's (孑) face on a melon (瓜) to have somebody to talk to in front of the space station (Ø1).

苦 = 艹 + 古 : Karl Koala decided to repent for his sins and retreated into a cloister inside the space station. There he leads a very simple life full of hardship, e.g. he gave up on eucalyptus and just eats very bitter artificial lawn.

伶 = 亻 + 令 : Li Qingzhao (li) wants to enter engine, but Rosa Luxemburg (亻) won't let her pass the entrance ((e)ng2). Fortunately Li Qingzhao is clever (伶) enough to show Rosa Luxemburg her Ling Pai (令).