>>2573320Some C&C
Overall picture quality is not impressive. Digital B&W that has ugly noise in shadows and flat contrast. Perhaps try one of those magical lightroom filters people use. Some (2,3,7,..) suffer from reflections from a filter perhaps. Very ugly. Also, the reduced contrast you get while shooting into light may look nice in color because it reduces contrast and causes pastel colors, but it looks rather bad in B&W as a rule.
That brings us to the next thing. B&W photography is about shapes, not colors. Where are your shapes?
#1 would be almost interesting, but there is a cut-off hand and the hand and rear leg are distracting.
#2 and #3 are useless. Boring composition, model head and arms almost touching the border of the image (either give space, or cut off), weird artifacts.
#4 is void of particular errors, but boring. She's looking away, not engaging observer in the photograph.
#5.. what did you try to achieve? Foreground that you see the most of is OOF. Only thing visible in the image is her neck, rest is just a blob of nobody-knows-what.
#6- This would be the first reasonable photograph if her head was in the frame. I understand you don't want to post her face, but why show us this?
#7 - strange crop, artifacts from filter or something
#8 - There isn't really anything on the photo.
#9 - Feet are presumably what I should focus on since they are in focus, but they are leaking away through the edge of the photograph.
#10/11/12 - well, those are interesting panties, but not interesting photographs.
Overall, you should look at every photograph you take or post, and ask yourself- what is on the photograph? Why would someone like to look at it? It is especially important with B&W photographs, because you cannot say "nice colors".