raymer, Is it possible to change the raised fist to a bend arm showing off a bicep? The raised fist seems defiant instead of constructive. These are people who are going to be working on "help" projects - helping the greater community.
Entry #1 raymer, I like this one better. See above comment regarding a flexed arm vs a raised fist. Also it would be better to change the wrenches for a shovel and an axe. Not totally sure about the ax as it could also look ominous but try it out and see how it looks.
ray - The arm idea is right, but I don't like that particular arm. It looks too cartoonish to me. I want the arm there but I don't want it to overwhelm the rest of your design, which is good. I like the stars very much. I think the green should be richer but not a forest green, which I think may look too dark. You can try out different shades of green.
Thanks again for great feedback, i totally understand your points. I will work on some further variations based on your comments and will upload again soon :)