For 20+ years I have not liked blue power weapons. I may associate painting swords blue as something from my childhood, and that the more gritty realistic approach to painting is the adult way to paint. (if such a thing is possible when talking about painting toys!) However with the blood angels release, fantasy like poses, and over the top style, I could not resist. So may I present My Sanguinary guard with bright blue patterned weapons!
My honor guard have dry brushed blueish weapons, but for these guys a went with a very bright layered scheme. To get the fine white edge highlighting I just put some tamiya thinner on one of my detail brushes and just erased the painting along the edge. I used the thinner to try and soften the blends a bit by just painting the thinner on the blades and allowing the blue to run together.
It is going to be weird to paint flesh tearers after this, since they have a much different appearance.