Well, first of all let me tell you that I am yet one more person here who is quite fond of the play of light and shadow in your Photo 163.
Along with that one I also like the next (164) - on its own, and as one that gives context to the other. But also 164 could stand on its own. I like that you left the colours in that one!
And I really like the way you highlighted that absolutely mundane scene in Photo 166. There is so absolutely NOTHING about it, just a backyard and a bike, but your photo makes it all IMPORTANT. Worth the while to stop and frame just this scene. I really like that!!!
As to your questions: I find 169 a bit on the dark side and wonder whether a play with contrasts and a bit of Unsharp Mask could bring it out better? Or are you all against using Photoshop on your photos? There is something there in that frame but it is a bit hidden in the darkness, particularly in the lower right corner. Unless you say this way your very plan, I would wish for a tad more light in that one.
And 171 makes me wonder why the second SORTIE is upside down ... is it a reflection? If so, I can't what it is that reflects the word?