Again, STUNNING :-) ! Photo-real and brilliant. I really like the huge render you posted, I'm able to see the detail great. Excellent lighting & shadows, amazing skill at matching your render to the photo. What is your render time on the single shot? The small purple light casting it's reflection on the small screw driver is great. How did you achieve the star flare around the purple light?
You can add that star effect on the light in Maya. It's called the 'Bokeh' effect. I think there's a 'use Bokeh' checkbox somewhere in light's attribute's editor. But I think I'm right in saying that it's a bit like depth of field, it can add alot to render time, and so, you're probably best off doing it however you did it in Nuke, where you'd have more instant control.
Been good to watch this project Serzz. You obviously understand your cameras..