NGC7822 - A skull for Halloween

This is a 2 pane mosaic of NGC7822 - and very apt for Halloween it looks rather like a skull..... This is the mono version of my current project and when it's got colour I'm sure that all skull likenesses will go. 

So far this is 15x1800s in each pane, so 15 hours of exposure in total, taken with the Tak FSQ85.