I think your first photo listed is my favorite. For me, it calls to mind an interesting dichotomy between a ladder and a prison. The bars are close together, so one instantly thinks of containment. On the other hand, just one more second of thought will show that the bars are horizontal: Perhaps this structure isn't meant to hold you down, but rather for some ascension? The hidden features of the face do no help to ease the ambiguity. The contrast of potential meaning is why it is my favorite (also, kudos for wearing a white n' black barred shirt, it helps the viewer to slow down and pick up all the details while still being relevant to the rest of the photo).

As for the second one, it instantly reminded me of my trip to the Holocaust museum in Washington D.C., truth be told. It isn't hard to imagine seeing this piece in a Holocaust remembrance gallery, with the numbers not unlike the serial tattoos the many persecuted were forced to bear in concentration camps. And with the blood... For me, that only seals this photo as being interpreted with a negative connotation.

Last but not least, this photo reminds me of a time when my little sister used to hate brushing her hair in the morning, haha :) I thought the shadow kinda looked like an upside down hairbrush. Brings back memories of my sibling needing the rat's nest on top of her head straightened out.