As I've been toying around with the Nagash model I've noticed a few things that address some of the complaints people have had about the model. It's going to be some time before I finish this guy, so I'll put these up here for anyone who is interested:
Some people don't care for the "Doc Ock" bone spines on Nagash's back. Personally, I have no problem with them, so they'll be on my final model.
But if you don't like them, Nagash's back is fully detailed underneath the bony plate with the spines, so the tentacle part can be left off with exactly no work.
The part even has a neat, spidery appearance, so a savvy hobbyist might find use for it as part of a Tomb Scorpion conversion or (with a few added tech bits) some sort of Necron contraption.
People have said Nagash's head is too small. With the model in hand, his head does look a little small. It's not as noticeable with all of his parts in place, but if you imagine it without the hat, Nagash's skull is out of scale with his rib cage.
I have a Bone Giant head that looks more appropriately sized. I'll have to resculpt the jaw and teeth to make it look more like a human skull, essentially keeping the top of the skull and the orbital sockets and redoing everything below the nasal cavity.
Unfortunately, the hat looks like it will be too small for the new head. I'll need to figure out a way to widen it at the base without losing too much of its thick-to-thin taper. I may also need to rebuild the ornamentation over the brow so it properly frames the eyes.