hmmm penis shuttle indeed.
The front view of your shuttle gives it a very wasp like appearance. Possibly an idea for fluff and paint jobs?
That might be a tad gaudy.
To two cockpits looks a little cramped, how about offsetting them? Put the on in front to the right, the one behind to the left?
Perhaps next to each some kind of gizo, gun or insignia?
Also the side they are on you could at a door joining into the cockpit, and a ladder?
It's something I have considered, actually. I do love asymmetrical designs, but first of all, I was inspired to do double cockpits by the Russian Mi-24 Hind helicopter, which I think might now be my favourite helicopter. I've also used the same double cockpits for all three shuttles designed for the Venturer, which gives them a certain sense of unity, as if they have a common manufacturer.
And finally... they're not cramped at all. Plenty of room. It's really a rather large vehicle.
Second thoughts, it looks nice and brutal and the cockpits look dainty, why not miss the cockpits off entirely, and perhaps a 'rhino' like slit?
It's not a bad idea - I actually did that for the Roc class cutter, a sister-vehicle of the Thunderhawk. But, see above.