Arms are too short and fists are too small too.
The head is too large.
I think the body is too large too.
Slimmer one would be better.
The proportion is not yet perfect.
This is armor and not clothing. The armor must be larger than the human body. But the size of thigh is nearly thicker than the leg armor, so the overall proportion is wrong.
Look at the your model pics, the thighs are much slimmer.