I picked 20 colours and picked 4 colours for each of the following:
Vampire
Fairy
Siren (Mermaid)
Mermaid
Witch
So this will be spilt into 5 parts, four colours for each then a separate part for each category with all the colours as that one category...
EDIT 27/06/24: I decided to add an extra 6th part for Pirates after a chat about Pirates of the Caribbean at work today..
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VAMPIRE:
Red
+++
Blue
+++
Violet
+++
Maroon