For reference to those who don't know what the original looked like;
It's not a bad likeness, in reality.
I think one thing that makes a big difference however, which likely couldn't be avoided, is the way the original has a very subtle curve to it, as you travel along the craft.
It's way too light to really show it clearly at your scale in Bricks, which is why yours looks ever so slightly bloated, in that most of it is a perfectly straight tube.
Perhaps if you made it at a larger scale (which would defeat the purpose, as it's at Blockhead scale for Blockhead use), then you could get a better curve in.
But other than that (And the missing symbols on the back side), I think it's pretty good. Well done.
