Start with only one simple pure white infinite light set it at 80% max..
If you are using BB's sphere, with a sky texture, that will bring in "some" blue but not as you describe.

Work up from there.

And as Bill says, the camera is Inside the sphere?

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!