Not so much a doodle as a full blown painting I've just done as a commission. My brief was to do something for a small boy's bedroom (He's called Hal) and to set it underwater as he's mad on fishies and his parents are sciency types involved in marine biology. As usual, click on the pic for a larger view.
I did a similar thing a few years ago in inks for a friend's little girl and had to include all of her favourite teddies.
Always nice jobs to do.