I've seen quite a few similar WHQ terrain projects, I feel kinda bad pointing out that is one is of no particular note, but having said that it is nicely done - good stuff but no 'wow factor' due to having seen so many similar projects.
As for ghosts, I have those same spirit-host models based up separately in a similar fashion - I painted mine in 'washed-out' browns and skin tone
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~The ravings of a single mad Goblin is bad enough, but such a power-hungry, malice-filled creature as Mortis can never hope to be understood~