I cant realy see an inprovement to you soldier. I would take Bouzolf's sugestions into more consideration.The main problem is the anatomy. I have provided a rough edit.

A few things I did that may help,
-I lowered the arms alittle
-Shrank the head, your is round
-I made the stance lees robotic(I think,it just looks more relaxed)
-Less broad shoulders, yours are very square
-More leg shape aposed to square shape
-Higer contrast/Hue shifted (I like having a bluer tone for a dak grey)
I have no clue how to do the feet, but I'm sure someone can help.
That should give you some stuff to work on.