Interesting that the synthetic happens to be featureless like mannequin without hair. I wonder why that is.
They are probably just around for maintenance tasks on the station or something. No need to waste face and hair assets when for a bunch of engineers and such (one user here referred to these guys as "working joes" - I don't know if that's an official term they're using in the game but he did say this before these images were even released). Though this reason also begs the question why make them look human at all, when you could have them have all sorts of tools for arms, etc.
Another possible reason is that Seegson Corporation still cannot reach the lifelike quality of the synthetics of Hyperdyne Systems, so theirs just come off as mannequin-like.
Those androids totally have the same, communist "Mao" uniform that David wore in the beginning of Prometheus.