The body, cutter arms, and tentacles are from the Maulerfiend kit. I like the bulbous shape of it and feel it works for something Nurglish. The multiple eyepieces hopefully give it a creepy look.The wings are from the Heldrake kit, and I positioned them a little differently to try to make it stand out from other conversions I've seen. Goatboy has done some really sweet Drakes, and definitely gave me inspiration for mine.
I tried putting more effort into the base for it, as you have a nice big area to work with and do something fun. I figured a Chaos ritual, with some obligatory gore would do the trick. I don't want to think about what that poor Marine had to go through to end up like that! Might explain where all those Nurglings came from...
I still need to add some white glue to the candles, making them look like they've melted down on the sides. Rest assured. plenty of blood will make it's way onto this once I get to painting it.