This is a personal piece I did for my portfolio and as screencast to record my process: http://youtu.be/smC3e0xWSQk.
I had to do something with the photograph but wasn´t sure what, so I found it would be useful to catch up on the Android/Cyborg topic and explain visually what I did in the written tutorials which you can find in "Advanced Photoshop Magazine" & "der bildbearbeiter".
The tutorials, (a free one can be found here: http://ow.ly/h2jDN) are quite sophisticated but the technique is quite simple as the video shows.
Model from Depositphotos @Viorel Sima
Background from Media-Militia http://mediamilitia.com/