Improvements from what you’ve made before.
Imma tell you what you can improve on further though.
His upper legs should be longer and his lower legs shorter. It looks odd and off when looking at the other limbs. The small shells you used on the upper half of the lower arms don’t flow well and look out of place, perhaps just using tires will work.
His chest has some nice things going on for him if it weren’t for the middle. Those greebles aren’t that fitting. I think the chest would look best if you’d use some red shells as pecs, would flow well with the sleek look he already has.
He looks clean and concise. I’d only add more black to him as to match his mask a bit more.
Oops, completely forgot the waist. It looks hella cluttered. The technic pieces are used in a weird curve and bits and pieces stick out here and there. The abdomen don’t look all that good