Best not to dwell on it..

And here’s a version with moar colour~

Lighting is nice but the blood looks a tad pasted on
His clothes could use some more detail, too
Like this

^That’s not a very well made detail. Personally, I am always adding details to the clothes by making hi res skins for them. Like in my nam picture.

Eh it was just to show off an example.
I prefer doing that too.

The fabric looks really weird, like just an overlay.

Well the original looks like plastic

Your vietnam soldier “hi-res” skins don’t look good at all though. You just made it look like their clothes have some really weird dotted pattern on them.