The all blue look is great. I think that any man can look good in a suit if he does it properly, and I find that the all blue look is very elegant. It is not as serious as black,and not as relaxed as brown or caramel or any such colour. They look dashing.
I find the double breated suit in cotton to be very interesting. These are both great choices.
I have no problem with blue, as long as it doesn't get worn every single day. There are too many men that wear blue as a standard "work" color, and never deviate. These genetlemen however pull it off elegantly, and I would stand behind these looks. The collars are both great, as well as the hanky.
The only detail that bothers me is the man in the first suit could have a slightly larger tie knot to balance his proportions a little better, but that is only worth mentioning if we are being really picky.