1. CleanupArmy.org should be in the logo. The ".org" part does not necessarily have to directly connect with the "CleanupArmy" part. The style of the text/font should be associated with cleanliness, and it may be a bit playful also (for example, a bit like in the provided ArtForCar logo).
2. There should be a sense of revolution in the logo, with a lead figure and cleaning untesil (such as a broom). But less aggressive and more joyful/proud than in the provided sketch.
3. There should be some sort of crowd, formation or anything that portrays community and empowerment.
4. There should be a globe in the logo. The globe should be colourful, encompassing the beauty and colourfulness of nature that is worth cleaning up for.
Get a feel for the purpose of the platform here:
Note: The provided sketch is just to give you an initial orientation. Please do not hesitate to explore your own ideas!