Nuke day to night

Carrying on from the other day, I’m trying to finish my day to night in nuke so far I’ve added a grade and exposer which has helped give the image a black/blue colour, unlike other peoples work I don’t have any light in my image so it has to be darker. So far I’ve added numerus rotos to this image and it is working but I’ve had to delete a lot of dots because as the image moves it’s just getting too messy, so now that I’ve deleted that layer. So now I have 18 dots which is a lot more manageable and what took me a day and a half to do has only taken 20 min, The only thing I have to do is feather these lines so there not so oblivious.