I toned down the yellowness of the greens in the image and added some blue to the water drops like Stephen suggested. 28 colors now.
You could probably do it better than I did, but I think it looks slightly better this way.
EDIT: actually the leaf on the left in the middle could use with some re-yellowing. But the mound to the right of it (I can't tell what it is. Is it a cliff with a road on it?) was definitely too yellow before.