It mostly looks good. You are missing all the underneath detail on it though. It doesn't have a flat bottom, it has a round dish toward the front canted downa dn forward and then the engines are basically 2 tubes set up in the hull underneath and behind the dish.
I would post a pic of the miniature I have, but don't have a place to upload the pics to.
Other than that (which isn't shown in the drawings) it looks pretty good.