On #22, I find it hard to see the A. Interesting thought though. I find #20 more interesting. I like the idea of an image like in #21 but would prefer images that were not solid ink. It needs to look good in black and white as well as color.
On #31, could you try to make the font for the words underneath a little larger? I am afraid that it is hard to read. On #33, could you put the text into two lines, left justified?
Thanks for following up on my suggestion and adding to your offerings. For whatever reason, the complete circles don't work for me and I am not getting a strong US vibe from the design. Unfortunately, I don't have any good suggestions on how to fix that. Broadly, with all of the designs, I am leaning more and more to simpler elements if at all possible. I don't know if that helps.