Yeeeeah...his clients do improve, so I guess he's fine putting pictures of their improvements up. How impressive the improvement.....? That's a different question
But as far as sev putting pictures up of himself as a way to brag, I wouldn't be impressed. If you're a trainer, and that's your life, you better look the part. All the time. Right now he is like an accountant who isn't good at doing his own taxes.