One of the things YamPuff admits she loves drawing is mermaids.
So while she was creating her coloring book "Sugary Dreams"

She figured it'd be a good idea to incorporate one in this sundae lineart.
She looks like she's afraid of being eaten along with the ice cream.
Don't worry, sweetheart.  I'll just ask the waiter for a glass of water so I can put you in it.

Mature Content

 
Then I'll take you home and keep you in my biggest glass bowl until I can get an aquarium for you.

Anyway, hope Yams likes the colors I gave this lineart!