Me alegra que te haya gustado n.n
If Ariel did go to Monster High,she wouldn't need a human form.She could go as a mermaid.As it is,Monster High has two aquatic monsters
if you do make a Disney Monster High,i have some suggestions.you can take them or leave them,ass you will.
Belle-robot (her father WAS an inventor)
Esmerelda-satyr (well,she had a pet goat)
Megera-centaur (the whole greek myth thing)