I have done a lot of rope work, looks like he in the lee of the tower so its not really a problem. But from the picture posted I have some concerns.

Only one rope, so he’s not double harnessed.
He has got a static safety line that’s attached to the ladder (uncertified point) the real worry is that it seems not to be attached to his harness correctly. Note the orange relive strap on his back, that’s where it should be attached