The only thing I'm really not feeling is the word 'ecology' and I'm not sure if it's the word itself being present or the color. It seems like it would look better if it was a color different than the ones used in the design. It makes the rest of the design's colors look limited to me, like you only had 5 or 6 colors to work with-- and I didn't think that until I noticed the writing. But I think the actual design works perfectly!
I guess i don't understand, really, because purple is in the picture throughout. If i didnt have the tree colored, there would be more to the picture but it's the way that it works. I know it is not something normal that people see today, but i am going for authentic.