Voting for b/w set was one of the most difficult because there were a couple of icons that I looked at for the longest time wondering "is there color in those or are they just warmer and cooler versions of grey/black. You shouldn't look that closely to the icons, especially since the little bit of color you think you see, might just be how your monitor is calibrated.

I saw the Freshman icon on your journal and LOVE IT. Thank you! I made it several years ago and (IMHO) it still stands the test of time. I'm not usually still happy with the icons I made when I first started making icons.