Just need to point out that you need to be careful with connector design with the rear booster and the upper torso. Your Gundam (i hope it is, if not i apologize) has pretty large boosters so its needs an equally moderate size connectors.
Other than that it is pretty much for space use right, you need to make a vernier and linear support thrusters more visible. As for now i cant tell if there is any or not but you should know pretty much how technical system works for space flights.
Just a some positive constructive comments, other than that it looks pretty good so keep up the good work.