Pic 1 looks (to me) that his hair above his ear and the top of his head looks in focus but his face and eyes and all else are OOF... so the DOF was too narrow and you didn't quite nail the focus point (my guess is you prefocussed and then moved the camera for a better comp - in which case, when you're using a narrow plane of focus, you 'shift' the focal plane)
A little blown on the skin-tones: perhaps dial-in +0.5 Exp Comp. Good idea to always take a test shot and look at the histogram and 'blinkies' to check for blown highlights.
Pic 2 - as above - also, his face is distorted: ?due to the lens being too close to the subject
Is this window light? Looks very strong. Is the sun shining directly through the window onto him?
Perhaps try the same shot on a hazy or overcast day - with him closer to the window. The light will be a lot kinder. Use a white reflector to cast some of the light back onto the shadow side of his face/head.
I'm intrigued by the small white speck in the corner of his mouth...
Hope that helps.
Jedo