I do like your chapter....but you need Hermione in your harem...she's stuck by Harry from the start...she's meant to be quite a looker at this time in the books, plus she has the brains required to help Harry be even more prepared. Could the Patil twins counts as one entity - maybe having a shared soul with a personality split (that would explain why they are in different houses.
Fleur is a bit of a non-entity for me, she is good looking (but thats about it) she didn't seem to have any power in canon...plus at this time she's in a relationship with Bill...unless you're are setting Harry against the Weasleys?