I have nothing constructive to say, really, as I've been drooling over this army for the past couple days like everyone else.
The Custodes look pretty bulky scale-wise, though...wouldn't they dwarf a regular Marine figure, judging by the bases? I know Custodes are bigger than Marines, but still...
...That's all I can muster as far as critique, and that's not really something the OP has control over. xP
The models and paint jobs are exquisite.