Toa of lightning are blue and white. Personally, I like to throw in some yellow as well.
As far as the MOC goes, the simple limbs work alright, but the torso 's the star of the show here. The nuva chest armor over the roboriders head might be a little overkill as far as bulk is concerned, but I like what you’re going for. Would suggest finding a mask that better matches the rest of the color scheme, though.
I could have worked with that a little better, well not to late to revamp it, have these parts in blue aswell.
Yea It does seem bulky in these pictures though in hand its barely noticeable, as for the mask it was going to be a Metru green noble Matatu but it didn’t exactly fit where the Hau did.
Though don’t get the wrong Idea I greatly appreciate the input.
I don’t really care for canon colors, but I think you should increase the amount of trans-neon-green to give it a bit more flash. I like the protrusions on the back and the gunmetal armor. I also agree the mask should be changed, it’s color sticks out too much, do you have a silver Hau? Overall this is a very nice MOC.