One of the most difficult things with males, especially in suits, it to make the clothing appear smooth. In the first image special care needs to be taken so the front of the shirt is not wrinkled. I realize the "style" nowadays is loose, but when that is seen in portraits it is something our eye keeps going back to, just as collars that are not neat around the neck.
If clothing is a bit too loose, close pins or some other clips can be used in the back to tighten it. Another thing that can be done is to fold the sleeves of a coat in such a way that they do not appear as full. It is sort of difficult to describe, but you just fold an pinch the material until the looseness is less noticeable.
As I say, I realize styles for me are looser, but in the first image, the pants are too low and loose in the waist for a business suit,in my opinion.
Re: Matt Marsh