I like this one^^ if you can keep that level of detail for equipments, would be nice
the car is also looking good and the faces of main heros getting better you need to pay lot attention in your main chars
If you want some suggestions i would suggest :
make the locker of jacket belts red and more square, like here:

make the normal belt (the pants belt )with the metalic locker and more wide (to stand out more)

There is also other details that you can do for the normal belt like for example those military sty holes, that let you attach equipment on

For the pants i would suggest to add a visible line in the middle add belt loops..
And last improve the endings of the jacket sleeves you can make some nice detail there. Cheers