A nice sub, with some good, playable features. I like the black & yellow colour scheme, it gives the MOC a classic, sci-fi Chris Foss feel: http://www.chrisfossart.com/2011/09/atlantis/
It's nice that you added in some playability to your build. If I may suggest something, maybe the underside could be sloped instead of just flat so that it can that have that aerodynamic look. Nevertheless good job!