I'm pretty happy with the lab jacket design. It hides the wings and smaller second arm of normal Nazorak soldiers. I also added the significant purple tie. The limbs (except for the glove) are extremely simple. At least I used the skies from Collectible minifigure series 2 as a shin armours.
I have two more Bionicle MOCs and one steampunk WIP thing coming, but I'm taking a trip to northern Finland on Sunday (paddling in Oulankajoki national park) and won't be active until next Friday. I'll probably write something in advance and set an automatic release date.