Pink flower vine nails + how should I do vampire nails??

I decided I wanted something cute and girly on my nails today, and this is what I ended up doing. 

I got the design idea from a post on my wall that I had previously forgotten about, until someone new commented! I think it's really sweet :)

The blue in the background was actually a mix of two colours. I had a blue MIKI polish that was 1/2 empty and a Revlon white that was only 1/4 full, so I mixed the two together. It didn't change it heaps, but managed to make it that little bit lighter, which is obviously what I wanted.

I'm going to a ball tomorrow - but it's a dress up one and I'm going as a vampire... a vampire in a ball dress though! I've bought some fake teeth and a cape and will do my make up in a 'vampirey' way. But what should I do on my nails? At this stage I'm thinking blood-like red polish at the tips of my nails, like the paint/ink ones that are all over the net. Anyone got any other ideas?