When I look at this, I notice there are some similarities to Mogy64's artwork, most notably in the paint-like coloring style and the fine tuned/realisitc details in anatomy. While it might just be a coincidence and/or a sign of expert level artistic skills, I'm curious if there was any inspiration taken in regards to Mogy's work.
As for the picture itself, its really well done. What I think makes this unique is the attention to detail and objects in the back & foreground, especially with the robot in the reflection of the mirror.