Caricature theme - Navy colonel in fish tank

Last brief:-
"Theme is him in his military uniform (Navy colonel) in a fish-bowl surrounded by fish. (He enjoys rearing exotic fish)"

Problem here is the fish bowl, and the client wanted it to be framed up without mounting board borders. With the fish bowl, this drawing may end up squarish, with top and bottom empty.

Think will look wierd in an A3 size frame. The proportion doesn't work.
Thus, I decided to change it to a fish tank, in which the artwork filled up the whole A3 frame, with reflection on the glass, suggesting a tank/aquarium.