[Copy-Paste from dA submission]
This was my third entry for this amazing StarCatcher, which I won! http://fav.me/d6or1w5
-dies- omk backgrounds are HARD! I fail so badly at them! I had to use like, a bajillion reference images! Aaaahhhh!

So up front we have Spice in a vampire costume and Sin as a bat... he's not a fan of his costume xDDD
A little farther back we have Hallow [who doesn't NEED a costume xD] who is intrigued by the poison that Nightshade, dressed as an undead bride, is selling! [oh, and Nightshade doesn't have her brown markings showing because she painted them black to fit the dark theme more]
Then up in the air is my unnamed bat pony [also not really needing a costume lol] who is either mad at Nightshade for selling poison, or is mad at someone else and planning to buy some poison himself xDDD You can decide which you think it is lol
Spice doesn't know that Nightshade sells poison... Nightshade always tells her that they're cleaning supplies and/or other things, and she's too happy about having another friend to question it.

Hallow belongs to KurosuAi
Hallodrip species belongs to me
Spice and Sin's design by Kuro-Creations
StarCatchers (c) ApriIIynne
The other ponies are mine!~ [though I didn't design them]