For fiery-hallows
This is the stuff you requested for the challenge.

Here is Claire's outfit for the event:

Here is Claire's aesthetic:
I even included a picture of Katherine McNamara who is Claire's face claim.

And it was hard to find a theme song for her but this is what I came up with:
Being Afraid by The Ready Set
And/or
Ground Control by All Time Low ft. Tegan & Sara

Let me know if I'm missing anything!