At this point in time I have a burning desire to write a science fiction story set in a world of my own creation. Which is described below (there's a LOT more but that isn't really relevant to what I need advice on) The story is set in a galaxy occupied by the Glorious Army of the Mole Queen (Mole rats who worship their current queen as a demigod, kinda like Ancient Egyptians and their Pharaohs), the Empire of the Rodents (an alliance of rodents led by rats in a feudal society) and Ferrets (Too chaotic to have a real society but one of the most feared military forces in the galaxy due the their aggression and lack of respect for life) as well as other minor creatures who inhabit the various planets but don't own more than one planet. Currently the Mole Queen desires more planets for her hive, so the Glorious Army is on a holy crusade against all other life forms, the Empire feels threatened by this expansion and seeks to rule even more planets just to deny them to the Mole Queen, the rest of the galaxy is caught between these two warring factions. An ancient civilization made them all as servitors or just as an experiment, and they bred like mad and here we are today. Course, this ancient civilization was destroyed by one of its creations, they're still hiding though, waiting for the chance to strike at their faulty experiments. So here's what I want some advice on, should I make these critters anthropomorphic members of their base specie or maintain their usual proportions and just increase the size? What kind of other creatures should I include? What tech level should the Glorious Army of the Mole Queen and the Empire of the Rodents be at? I'd also appreciate general suggestions and that for this setting.