Hi icekin,
I admire your technical ability to put together a website!
Asking for comment always turns up some criticism, at least it does in my case when my own efforts are reviewed. So, please don't be offended by the following remarks.
Since you asked, the site seems rather 'flat', a bit clinical.
I'm no designer, so I can't suggest how to energize things, but I do know I'd pass on this one if looking for investment potential.
To me, if a site seems low-key it implies (rightly or wrongly) a lacklustre marketing/management approach (and perhaps, in this case, a lack of synergy with the ultimate consumer -- most kids I know like more enthusiasm).
Have you any pictures of kids enjoying or showing enthusiastic interest in the product?
I hope the project turns out well for you!