I would like to mention that letting me know where in the galaxy you'd like your central homeworld to be located would be very helpful. The galaxy is a spiral form, so just let me know the general area in which you'd like to be (ie; closer to the center, tip of an arm, etc).

And again, specifying details on your worlds, their stars and the bodies around them helps me greatly. If you don't, I'm left to assume you don't care, in which case I'll take my own liberties at designing them.