They're quite well done, pixel-wise. They seem somewhat distorted, though.
Here's an edit with more width, it immediately starts to look more human.
And then I started thinking, what could he use to look even more human? How about a nose.
But then I thought about the hair and it seems he's a middle-aged guy, so that 8 year old face won't do. I added wrinkles and other wear and tear of age. He's looking more like a real person now.
That's a step in that direction but not nearly enough. He still looks *innocent*. Who is innocent on the battlefield.
This is for a tactics-like game, right? So it's war, there's war going on. This is an old man on a battlefield, he's probably seen some shit. We need his face to reflect that. Gone are the doe-eyes of innocence, enter the squinty eyed hundred yard stare of a hardened veteran. Also who shaves every day on the battlefield? You had those colors for the hair, so I gave him a five o clock shadow and I also decreased the shiny on the hair because who has time for conditioner on the battlefield.
Actually let's amp up the wear and tear, let's make him a real old man. Let's have his neck be hollow and his brow worried. Let him communicate something about what it feels like to see death around you every day.
And the final touch, let's pull in that left eye that makes no sense over there, let's put it closer, so the old man has proper depth-of-field view, probably an advantage on the battlefield.
This looks like a person now. A person with irritated skin, with hopes that he's trying to keep alive amidst the carnage, with a determination to see his grandchildren again, perhaps. He has a nose, proper eyes, a frail neck that tries to support his head in advanced age, he has dirt on him but he's keeping hope alive, no matter what they do to him, he's still human.