It looks airbrushed to me.
Here's a rundown on what I'm doing to mine:
1. 5mm Blue LED behind sensor dish
2. 3mm red/green running lights
3. strobes (fiber optic with white LED source)
5. 5mm White LEDs (internal) for windows and spots (tinted pale yellow to replicate incandescent glow)
6. 5mm Blue LEDs in warp nacelles. (purple/blue tint if I do it TMP style)
7. 3mm Red LED for impulse engines (blue if I decide to do it TMP style)
8. 3mm Blue LEDs for nacelle crystal thingies
9. 3mm blue LED for warp core crystal
10. Fiber Optics w/ Yellow LED source for ALL thrusters, including the ones around the secondary hull near sensor dish and on the ends of the nacelles.
11. Adjusting the color discrepancies on the pylons.
12. MAYBE 3mm red LEDs for torpedo tubes
13. MAYBE battle damage if i decide to do it WOK style...which would explain the blue on the secondary hull as opposed to green and the lack of iridescent white aztecing.
And for sh!ts and giggles, I'll be making a 1/850 Millennium Falcon to fly along side. If my measurements are correct, it'll be about 1.611 inches (40.919mm) long.
I've always wanted an accurate as possible Enterprise, but could never afford to buy an Ole' Smoothy AND the accurizing kits. This is probably about as close as I'll ever get. Maybe I'll buy another one in the future, strip it and paint it myself as well.
I'll be sure to post pictures as soon as I'm done...in 40 years.