Thanks for joining green :-) I like your idea with making the V look like it´s ticked off in #12. It suits the service being a place where parents should choose which kindergarten to send their kids to.
I´ve seen people stretching to the sky in so many logo designs, and it doens´t really reflect the service, even though you can say they are playing, so my tip is to leave that concept.
Thanks green! I like your last revision of the concept. What this design is missing is a reference to children. Could you maybe add an element in front of the text, e.g one or more toy bricks.