I really like the scheme, though; it gives character (as opposed to the standard reddish Chaos ships), particularly as the "nurglesque" growths are subtle. Too many "plaguefleet" ships are converted with effects that aren't true to the scale. So good job!
A nicely painted base with stars and perhaps a name plate would go a long way to make this mini really stand out. As it is, I know how easy these things are to paint, so you get no extra points. It's clearly better than just a simple dry brush, but that's about it.