That's a beautiful model!
The new Enterprise hull colour seems to change a lot depending on the lighting. On Nibiru when first rising from the ocean it looks very white like the model and how the TOS ship appeared with the original FX, over Vulcan and Titan it had the same yellowish tinge the Kelvin had, in deep space she's a gunmetal grey etc.
Oh and here's the bluray profile of the Narada. I love the detail here, endless layers of spikes and machinery. It looks like a 5-mile long flea. The info surprisingly mentions the Borg upgrade backstory from the Countdown comic, and actually explains the drill - that the beam sucks ore up as it drills down into it's target, and that the drill's maximum extended length is 110,000 miles.