Render Mob Designers - http://www.rendermobdesigners.com
The concept behind this is life, even in dark places life will grow. I found an image online which i found very beautiful, i changed a lot inside and added more elements to make it more rich. This time i dug deeper in texturing, if you zoom in you can see the dirt on every corner of the concrete & the black drops of water that is usually left after being dried.
I will release a small tutorial about this very soon, right now just enjoy the image. I'm not releasing a video tutorial it's because i don't have a proper camera and a microphone to deliver a proper video, i'm picky when it comes to this too.