一级士官

Maud Younger (y) forgot her keys to the space station (Ø1), all she brought outside was her flute (一). She has no choice but to crash the door with the giant flute.

级 = 及 + 纟 : Joan of Arc (ji) closely investigates her newly arrived troops just inside the space station's entrance (Ø2). She ranks (级) them according to their level (级): First there is a silk worm (纟) which can at least shapeshift. On the next level, there is Yuwen Huaji (及), who has no comparable super power.

士 = 十 + 一 : Sherlock Holmes (sh) is meeting the bachelor (士) in the bathroom of the space station (Ø4). Sherlock Holmes is playing a flute (一) for him, and the bachelor is wearing a huge cross (十) around his neck.

官 = 㠯 + 宀 : Mnemonic symbol: to symbolize the bureaucracy involved in every governmental system I'll use a folder.

官 = 㠯 + 宀 : Gitta Giraffe just graduated from anthill, and standing in front of it, still wearing her graduation cap, she's ready to assume her post as government official. She already has a folder under each arm and is wearing big safety glasses (be safe at work!).