Visartes, thank you for the quick submission! I think the tie in the logo is cute but I'd like to stay away from ties simply because it implies "professionals", whereas, we are really catering to fathers from all walks of life.
Visartes, I love the action in the #6 logo! And the father/son silhouettes are great too. I like the orange/gray combo you used in #3. Could you try those colors with the #6 entry?
One last thing... (sorry for the last minute requests). In #47, there is a little girl. How hard would it be to add in a girl with a bow in front, or something similar, holding the little boy's hand and pulling him? That might make it a bit crowded but I think it might work.