With one aeroplane having its wing tip smashed and who know's the extent of damage to the wing front spar, and the other plane having its radome smashed off and a hole in the fwd pressure bulkhead - i think the structural damage would be quite extesive.
I have also heard that the plane under tow may have had its nose gear rotated past the 90deg mark, as then the tug slamed on his brake the plane kept on rolling sheering the tow bar
I hope all the people involved had their "Tow Safe" aprovals up to date