This crossover fanart was created for two members of DeviantArt: "JAVIERROMAN03" and "ILoveYouLuanLoud2002". It's part of Javier's "Mermay Challenge" and a requested drawing for "ILYLL2002".
From the username, I figure Luan Loud from The Loud House was the second artist's favorite nickelodeon character. And when she asked my to draw Luan scuba diving, I figured she'd have a run-in with Abby Hatcher as a mermaid...or more specifically, one of the Bubble Guppies. Seems both are startled to discover those stories they've heard about land beings and merfolk existing are true!!! But now they wonder what else about them is true?

The Loud House, Bubble Guppies, and all related characters belong to Nickelodeon/Viacom.
Abby hatcher belongs to Spin Master Toys.