Do you play BlazBlue? A lot of your art reminds me of the BlazBlue characters and the complexity of all the armor and designs. You should definitely draw some of them sometime, I'm sure it would look amazing!
This is a really, REALLY good piece. My only concern is that her right knee is either not there or well hidden (which makes me blind). On the other hand, that's crazy knit-picking, so it's not a real issue.
Personally not digging the helmet (I never like those kabuto helms), but the trident (while impractical) is awesome. You also have rockin' skills with color. I love the smooth painted feel. The lack of really visible lines only emphasizes it, too.
All said...you're doing it pretty damn epic, actually.