Do not use green color, do not use plant, flower, threes to indicate ecological and/or environmently friendly do not use wheel to indicate automotive do not use small details do not use to thin typographs Keep it simple and clean Keep it fresh, modern, futuristic It shall be easy to read the text and easy to remember and recognize our logo Think untraditional
Meanwhile, and going against what you said and asked... I did this. Hope you reconsider. The ecological part is not only about the name, the graphic and the color palette should reinforce the idea of protecting the environment. Beside, warm colors like reds and oranges, they stand for energy - true - but they also represent pollution and stress. Green and blue are eco friendly colours, even brown (the problem is to find the right shade!)
Which concept shall I revise? #131 or one of the others like #140? I know you like the mark and you want me to work on the text, just not sure which one is your preferred. Best, João