I don't even see a deflector dish attached to the engineering hull, just a bottle cap. As such, the shield grid might do the work of a navigational deflector, as has been suggested for ships like the Miranda class, for example. This is sometimes thought to be perhaps the first warp-7 ship, in light of ENT. So one would expect a big deflector dish, perhaps built into the front of the sphere.
But that raises the question of what I should show inside the bottle cap in the MSD besides a bit ball of cotton.
But that raises the question of what I should show inside the bottle cap in the MSD besides a bit ball of cotton.