The thing with Sekunda is that he is either admired or viewed as a laughing-stock. Some academic criticisms of his work really hammer him, but as he is more accessible to the average reader he is more widely known - hence imitation legionnaires in RTW.

Coming from the anti-imitation camp (after all, what would a hostage Antiochos IV have seen in a city where no military presence is allowed other than triumphs and ovations?) the one good thing I will say is that there are images of artifacts that are difficult to find elsewhere. An example of this being the armored elephant statuette.