All cold white light look a little bit blueish on photos and video. Actually, I thing that is a really nice effect , and it is everywhere in tar wars films (for example the falcon's engine lights where they were not painted were white in life, created by a halogen lamp). So I wouldn't have worried about that anyway, merseajohn.
The first layer of paint looks really great. It was allways hard for me to find the correct color for such not really white sw ships as Falcon, or other YTs or X-Wing. Is that a 'bottle' paint'or a mixed one?