Mirnes has two very strong, prominent, distracting ear shadows, which attach to the wall behind him...and spoil the lighting effect, which is otherwise, fairly dramatic and striking for a hard-light type lighting effect. He is also placed rather low within the frame, which causes a visual imbalance, and make him look weak. The camera position is also a bit higher than his eyes, so he also appears to be looking up, again, a position of weakness.
The second shot, of the boy, is not all that engaging to me, probably because it's fairly dark, and it just looks like so many other direct-flash type shots.
Both also suffer from the big, black, dilated pupil effect, with very little eye color...another issue so often seen with speedlight portraiture: big, dilated eyeballs that remind us of heroin addicts...