>>81992406Most of them have some inspiration from their names:
Lori - Dryad made out of wood. Pretty, but not very flexible. The most "grounded" personality and watches over her siblings.
Leni - Angel. Very bright and positive, but a little airheaded. Has a bad habit of leaving her wings outstretched and knocking over furnishings and people.
Luna - Werewolf. Likes to do concerts on full moons to make the most of her vocal chords.
Luan - Frankenstein creature. Along with her normal gags, she likes to freak people out by losing her limbs or head in front of them.
Lynn - Mermaid. If sufficiently dry she can use human legs, but if she gets splashed she turns back into a mermaid. Likes to do extreme watersports when she is.
Lucy - Devil. Has bat wings and floats everywhere. Keeps her eyes hidden since they tend to drive people mad with terror. Seems apathetic to the world, but is secretly embarrassed about her cloven feet.
Lola/Lana - Mineral creatures. Former is very shiny and crystalline, latter is more sedimentary and has moss growing on her.
I agree with this anon
>>81993188 about Lisa and Lily. Spider plays up Lisa's "four eyes" and she would use her extra limbs and webbing to do more calculation. Lily is adorable, but often smells of sulfur and is prone to shooting flame from both ends.
Lincoln would be the token human, whose job is to help his siblings adapt to a very human-centric world (or has to learn to live in a very monster-centric world). Despite feeling plain, his sisters actually find him as curious and exotic as he finds them.