This is really phenomenal! There’s a lot of great detailing without being too busy. I like how you attached the friction pistons, too. The white background is actually not really bad; it makes it look very clean.
I had to use them there because of the way I built his lower torso. Since I used an inverted nuva chest I had to give him a 7 wide hip joint and the pistons make it more stable. Also no, he can’t kick unfortunately, the furthest the leg will go is about 45 degrees forward and back. Works fine for me tho
I really like this MOC. The proportions are unique and well-defined without being so different as to look goofy. The clear, monochrome colour blocks are also done really well.