Biological Form that steals energy from other ship into there 100 Thousand Voltage Battery and return it to there leader
the shape of the ship is quite ok I guess, but please don't use that many vertices for such a simple model. You should make use of a "Subdivision Surface"-Modifier instead.
Also always name your objects (in this case it's not a problem, but if you have a lot of objects "cube", "cube.001", "cube.002" and so on are not particulary helpful names).
Btw. space usually isn't blue ;-)