Hi Heru,
I really like your two proposal #46 and #45 (in fact, I prefer #45 but I don't have the decision powers).
I suggest you to try some changes on #46 by taking care it won't look too much as Premier Tech logo (a well known enterprise around here) : www.premiertech.com
I don't know if the childs on your profile picture are yours but I must tell you that they are very cute! Tell them!
Thanks