float
Despite our misgivings it appears our vehicle can float!! Hooray.

depth
I listened to "Holland 1945" a lot by
Neutral Milk Hotel and consumed three beers and a salad in an hour

then this picture was made after three previous attempts to sketch on Rob's tiny laptop with the touchy track pad.
A bird/cormorant/tern flies at one level which is above the snail that crawls at sea level, which is higher than the flaccid looking tuna that swims at a lower depth.
The concept is weak but the execution is also weak. Still I'm proud of one thing which is that it's made out of circles, as advised by the likes of
Ed Emberley and someone I can't remember who wrote a how-to-paint book given to me by my parents in the seventies.