Thanks again to the March For Science members, from whom I crowd-sourced many of my Scientists March For Science designs! I'm getting tons of great input on which branches of science to work up, and what tool/symbol would be most representative of that field. (Marshalltown trowel — who knew?!?) They were able to be so much more specific than anything I could've come up with and served as my art directors to make sure I got the designs right!
A special shout-out to Zack Dunn, who suggested I change the color of the Chemists' fist to blue to represent safety gloves. I never would have thought of that, and it looks great