I used the lab rat comic for the wall picture
since many wondered what PS and what reality is, here's the explanation:
The wall is real, it's a wall of a cellar
It had its own very nice pattern and structure, so no need to PS that.
Me is real - but I added some more hair locks, edited the shoulder of the tank top (because it had slipped).
The lighting is half real and half PS.
The mural is from the Lab Rat comic.
I Photoshopped also the Aperture logo on the orange part of clothes.