OK just a couple of things, with your armor fit up looks like you're right bicep needs to come up, thighs could come up a bit too, foam behind your shin will stop it from rotating, also elastic from you're boot to the shin can help them from coming up.
Now helmet, the tube stripes look a bit large in the photos also not enough of them, could just be the photo, also what blue did you use. There is a tip about painting tube stripes on the forum, first paint white then if they bleed it will only be white underneath, then paint blue on top and the blue won't bleed through. Is the black on the vocoder satin black, that is more acceptable. The cap looks a little slanted you may want to look at fixing this but you could play with the rubber trim and get away with it. The grey on the end of you're teeth need more of a point to them. Just watch the outside of your painting, the straighter the lines the better.
Don't panic its only a few tweaks and you will get there, good luck with the rest of the build