Scuttle Crab Kench - Quick Sketch
https://i.imgur.com/Sm9sx4T.jpg
Kench as a Scuttle Crab... Need I say more?
Honestly though, I feel like this is untapped potential for a character that loves the river, even if his body structure is far from the swift little crustacean. I'm sold on the face, but I wasn't sure what to do for the clothes, so I just gave him some seaweed wraps around the claws, and a purple coat with a "vine/seaweed"-like trim and a typical scarf and button-up to keep his gentlemanly stature.
Thoughts?