For entry #1 I like the idea of the "A" up top but I think the font down below isn't so interesting. Also, I would rather see logos on a white background because they will be used primarily on white. I like the 3-d look of the top part.
Love the use of fonts in #10. Can I maybe see different variations on the symbol part of the logo? Maybe also some different colors? Possibly "DA" also instead of just the "A"?
Love #37! Can you try a few different colors? Also maybe tweak the "camera" a bit to sort of make it more 3-d looking? I like that glossy sort of shiny, glassy type look.
For #37, I was just thinking... Maybe even the camera without the initials in the center? But also more 3-d/glossy/shiny etc. And also maybe another color? Not totally sure, can I see several variations?
Love the new camera in #52! Can you just try a few different color variations on the text instead of the rainbow? I don't want it to get too crazy with the colors on the text. Maybe one that starts with red and does a gradient across into a hot pink? Or maybe a few different versions with 1 solid color on the text?