band of secret names: crit -> hit, not haste -> hit
nether protection is better than aftermath
Antram: your dot uptimes seem a little low...corruption & BoD are instant cast, so you should have them up for more than 80% or 70%. 87% on immolate isn't bad, but watch that one and use fel flame to keep that up. 60% on ISF isn't bad for antram, it's a pain to keep that up during air phase.
Maloriak: I haven't ever done maloriak as demo, so am not sure about how your % of damages look, but I'd say 60-70% dot uptimes are a little low...I could be wrong though, I am assuming your not refreshing the dots during green phase due to aoeing, though remember that maloriak takes extra damage in that phase as well, so if possible take a GCD or two to refresh those dots for a little extra DPS on him.
looking at your dps, i'd say they seem ok...except for antram, you should be able to pull much higher than that. I have about the same gear as you do (I'm ilvl 367). Your dps is different from mine (I raid affliction, so some fights I'm higher than you, some below)...but antram I pull at least 21k, whereas your just above 17k. ...ah, you died. that explains it. Try not to die
dieing is bad mmkay?