孤孑特立

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).

孑 = 了 + 一 : Just inside the elevator's kitchen Joan of Arc hands a prize cup to a very proud mosquito. The mosquito won a flute-playing contest.

特 = 寺 + 牛 : Tecumseh (t) has a very special (特) mount: In contrast to the other Indians he rides a bull (牛). Moreover, the bull is so special (特) that it meditates in front of the Buddhist shrine (寺) in the elevator's bathroom (e4) together with Tecumseh.

立 = 䒑 + 亠 : Li Qing Zhao hides some weed in a vase in the space station's bathroom. To get the weed there, she transports it under her beret.