Well... I have already written a full novel about your Berserker model, I'll perhaps write a sequel for my editor !

No, just kidding.
Dwarven phalanx... Battle for Middle Earth fan, aren't you ?

As all the other said, yes, the footman texture is... unfitting, but, yes, the helmet is fine.
All the head is fine, worse parts start at the shoulders. Dwarves have big shoulders, just add two big shoulder plates, and it would be fine...
...As long as it would make your model look even more like Elenai's one, but I prefer keep out of the argument, I'm not fond of politics.
In fact, this dwarf looks far too much "empire" style, all the armor, the ribbed pike handle, etc...
I think you have yet played Battle for Middle Earth, otherwise you would never have this weird idea to make a dwarven phalanx, but you should perhaps make a model of the same brand, you know, cloth/leather armor, as far as pikemen/halberdiers are more known for their damages than their armors.
You could also copy BfME for the halberd itself, firstly adding a wooden handle, with metal pieces if you want, ribbons are too much ceremonial. Then, you could make the multiple blades on the head, you know, double blades, or perhaps four fixed in a cross, it would be awesome !
(BFME's dwarven phalanxes)
You used the Felguard's animations, that's fine, everyone use them for pikemen, as far as it is the only unit which really attacks like a pikeman, but you should work a bit on this too. His left hand oftenly rips out of the handle, when he moves, and he obviously release it when he attacks.
Fine model, still, but as I said for your berserker, shorten the legs and torso, to make him looks more dwarvish.
Keep on the good work !