This truly is one of those builds that must be seen in person. The details are so many and intricate that they can't be fully appreciated in a picture. I was most pleased to be able to see it in the flesh. The tower is primarily SNOT, and it's sheen size is just jaw dropping. However I agree with Fras and BJim; the Ents really make it. They are hard enough to draw (remember the giant walking carrot from the 1978 version?) but to see them rendered like this was incredible! They each had personality, they even used black bricks to show the burnt part of the on-fire Ent. The builders were really copol too, each willing to answer the same question again and again.
Men who lie, merely hide the truth; but men who tell half-lies, have forgotten where they put it--Samuel Clemens