肌
=
几
+
月
:
The moon (月) is moving and Joan of Arc (ji) is helping him. She's been carrying sofas and small tables (几) all day in front of the space station (Ø1) and now she has sore muscles (肌).
胃
=
月
+
田
:
Willy Walrus (w) set up a mooncake (月) field (田) in the Eiffel Tower's bathroom (ei4). This led to him eating way too much cake, and now his stomach (胃) hurts. To relief the pain he uses a hot water bottle (mnemonic symbol for 胃).