You may think that the change of artists would affect the overall quality of this title and actually it does (We're talking about losing frikking Ivan Reis for Pete's sake) but not as much since this continues to be a quite enjoyable read.
Johns is using this issue to set the Throne of Atlantis crossover event as well as Arthur/Orm relationship and so far he does a pretty good job. Arthur instantly suspects that Ocean Master is the one who has been planning to stole the Atlantean Relics but their interaction is not as violent as one could expect.
The characterization of Ocean Master is pretty well done, he actually seems a different person than before and I'm glad for it since I always thought he was a one note villain.
The pencils are kinda inconsistent but it will improve once that Paul Pelletier comes aboard.