I love the left side where only a bit of colour shows through and the clean lines of the border really contrast with the overall grunginess of the composition. Towards the right where all of the photos and renders are used there is a feeling of chaos. The way areas are cut, duplicated and shrunk adds to this feeling. There seems to be uite a dark overtone to this as well if I look further into the photos and faces... they show quite delapidated places, places that are quite run-down and the fact that the eyes are missing from the face is quite intriguing too, maybe it could be because they are often the main features of a face, and when they are unseen it's almost hard to recognise someone. the use of dirty pinks over the greyscale background adds a nice contrast as well, but not too much so that the moody feel is lost. The large typo that is partially obscured at the bottom is nice too, it sums up the overall feel of the image; where nothin is actually revealed fully... I think that the renders could be improved upon though, maybe adding a bumpmap texture of a rough wall or rust maybe? Just to enhance the mood, as they seem quite plain at the moment.
I would love to see the final image of this, a fullscale final construct with all the screws and bolts would be an impressive sight, especially if you maybe try to rust them, again to enhance the mood and overall presentation.
Just my thoughts on this.