Additionally, the pose.
The middle one is the weakest among the three.
View attachment 46745
The red line I drew is your contrapose, it's good on the body, the contrapose is different from each other, but the head is not good. It's still straight.
Secondly, the yellow line is the negative space; it's too little. It makes your pose readability weak.
I test it with Silhouette.
View attachment 46747
As you can see, it isn't readable enough and not strong enough. It's maybe because the weapon, the weapon is too straight.
If the character is preparing to attack, tilt the weapon up.
If the character is aggressive to attack, tilt the weapon down.