世涛

世 = 廿 + L : Mnemonic symbol: the WTO or WHO.

Sherlock Holmes (sh) is cleaning a flower pot (廿) under the shower of the space station's bathroom (Ø4) with a loofah (L) because he didn't quite understand a poster next to the shower from the WHO (世) explaining dangers arising from different germs.

In this case, L is for loofah.

涛 = 寿 + 氵 : Tecumseh (t) is growing longevity peaches (寿) in front of the aorta (ao1), and he waters them every day with his water bottle (氵). Today, as he is just about to water the tree, he doesn't realize that there's a huge wave (涛) behind him coming right at the tree.