First, a view of the whole army. This will make a very large POL army with lots of different options. He picked up some giant bats and bat swarms, as well as wraiths and spectres, so it will get even larger.
Second, his zombie horde is fantastic. He designed the so that when all put together, it looks like they are ravaging through a warehouse area.
Next, are some of his skeleton hordes. He has some standing on cobblestone streets and others breaking through cemetery gates.
Next, he did three units of werewolves. My favorite is the unit that has just destroyed a wagon team.