I consider your art to be full 100% pixel art without any doubt, but that's probably just me. Basically there are two different groups in pixelation, purists, and people with a broader look on pixel art. I consider myself with the broader group. If you look at communities like PixelJoint.com, you'll see they tend towards the purist side.
As for your art, I like your AA, though it is a bit blurry. You'll need to work on the ship. Get some colour variance in your ramps (hue shifts, etc) and get to work on getting depth and/or reflection in there.