I still prefer #30. What about changing the serrated line in #30 into smooth one-wave line?
Or, how about purple heart? (mixture color of pink and blue)
And also, can you try the other colors instead of current pink and light green and make it more serious and professional?
It is too pop for an NPO organization.
For example, dark gray, dark blue, darker green instead the current light green, and calm pink instead of the current pink.