Very well done!
My sister (mother of two kids) asked me a while back to make a game for her kids and to be honest I sucked at it!
Games for children have to be much more creative than every other kind of game.
Childrens can get bored realy fast so a game that aims on kids (like a learning game) has to contain lots of possibilities .
When I was younger (6-9 years) we hadn`t something like a computer but I know that I always hated stuff with slogans like "for children" or "educational" on it because I always got bored by these stuff.
So I`m pretty impressed by what you have already achieved!

~Gurke