I've noticed that when pictures are taken with camera phones, they tend to throw a yellow tinge on everything. After taking a picture of the current quilt I'm working on and losing so many things in it, I said enough and I pulled out my Fujifilm camera. I won't be posting anymore pictures from my phone.
As far as the blue, I would keep it in. The small splash the blue will make will cause the eye to drift across the quilt like it should.