Kind of lost it a bit there with the voodoo queen but I had no idea what to do with a dress other than pull it off... so I tried flowers.
Should I deflower her again?
What you might want to do is to get a balance between 'real' and 'fantastic'.
At real vodou ceremonies, the dominant colour is white. This is then accented by a small addition of colour – which colour that is depends on the vodou spirit being honoured.
For example, here's a photo I took at Fete Gede, which is the Vodou feast of the dead. The colour of the Gede spirits is purple:

So, just a hint of colour on a base of white should capture the mood.
Hope that gives you some inspiration!

(Writing from Port-au-Prince – official LAF Haiti correspondent!

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