Trying to avoid double post here... sure, it's GM's privileged to double post, but I still try not to...
I've tried to draw her but I'm just not that good an artist. So I will offer here a description and anyone who wants to try and draw her is welcome to try.
Hmm... I've had a look on google and this is probably the closest image I can find to what the ship should look like:
Ignore the shuttle. Wouldn't be there. The habitat ring at the "front" of the ship would actually be concealed behind the ram-scoop field generator and an ablation shield.
The cargo holds would also be "Above" the habitat ring. Below the ring would be fuel storage tanks. These feed into a massive reactor chamber. The reactor is a fusion reactor - a miniature star, contained within magnetic containment fields and tons of shielding. This reactor powers everything on the ship, and the carbon created by the fusion of helium atoms is ejected out of the back as reaction mass, or something like that.... I'm not going to get bogged down in the details of an interstellar fusion drive.
The habitat ring is basically three decks. The top deck is where the bridge is and the bulk of the crews quarters, also the galley. Deck 2 would be extra living accommodation, stores, and valuable cargo. Deck three is the machine shop, engineering, hydroponics, science lab, medical bay, brig (just in case), gymnasium and anything else the ship might need that I've forgotten about.
Every crew member has their own cabin. The officers have a state-room consisting of an outer office and an inner cabin. Captains is closest to the bridge on one side, the galley is on the opposite side from the bridge, then the mess hall and off duty lounge.. Each room on the ship is wedge shaped, with the corridor running around the inside of the ring. Each crewman's cabin is about half the size of the officer's cabin, that is a quarter the size of the state room.
Each crew cabin contains a bed, a work station with computer terminal (and entertainment centre), a private shower room with toilet, and enough storage to put everything away.
Officers cabins will usually have an easy chair and small coffee table, in place of the work station, and a double bed instead of a single. The outer office of the stateroom would have a desk (with built in work-station), several chairs, and in the Captain's cabin, the alcohol cabinet.
All furniture is bolted to the floor and moves on tracks if it needs to move. Everything
has a place to be put away where it can be secured. (If you don't know the reason for this and want to, or think your character ought to, please PM me)
Oh, directly underneath the habitat ring is the ship's mainframe computer.
Every human function on the ship is assisted by the computer. Everything from plotting the course, to physically moving the cargo, is computer assisted.
(And yes, I mean every human function with the possible exception of sex - even going to the bathroom. All waste products are analysed and either used as nutrients in the hydroponics bays or fuel for the reactors. All water is extracted and purified for re-use!
Anything I've forgotten, please tell me!