I like how you took a new direction here and got away from using the initials. When I first looked at the logos, they looked like trees. When I enlarged them, I could see that it was a person. I'm not sure, however, if you could tell what the logo was when it was small enough to be on a business card or letterhead.
Hello, Exactly, is a man-man tree ... Man with outstretched arms holding a crown of а tree. Metaphor of human possibilities for dealing with problems. Even small the logo would be recognizable and would take other's attention.