I think the guy being roughly the same size as the woman is a Daz3D thing. If the characters are vastly different in size, the animations don't line up. So most artists don't mess with a character's height too much.
As far as his looks go, it's probably too late to alter him. The game is already 250+ renders in and swapping anyone out at this point would be a massive endeavor. I did my best to make him attractive. Though, I generally avoid focusing the camera on him too much.
What do you think of the women? The main love interests are where I want people's focus to be.