Click and drag the hair, shirts, tails, and fins to the doll to put them on. They will automatically snap in place. To change the color of an item, click on it! You can change the color of the skin, eyes, fin, shirt, background, bangs, hair, and tail fin!
Thanks to @Buddy_Mermaid for the original project Mermaid Creator remix. Thanks to @Sea-Shanty for the original project Mermaid Creator.