Suggest doing google on SEABREEZE re-topic has come up a fair bit one way and another here are some previous posts as food for thought...
www.seabreeze.com.au/forums/Kitesurfing/General/kid-bar/?SearchTerms=kids,barwww.seabreeze.com.au/forums/Kitesurfing/General/Kite-for-25kg-girl/?page=1www.seabreeze.com.au/forums/Kitesurfing/General/Trainer-kite-3/?SearchTerms=reachNot sure on budget but 6M = good starter size likely out grow fairly quickly in sub 20Knots...
I part purchased my Daughter's 8m Catalyst as my hi(gher

) wind kite
She is 14 50-ish Kg - board is a 131 M8 hand-me down. She started on a 6M Session but would not recommend - probably not sold anymore - I like simple bridal kite & would suggest looking at OZONE...
I have a ball on my Lithium - but realistically once U buy your 2nd+ kite U R targeting a particular feel and style so horses 4 courses....
Not tried EPIC but owner designed with his son in mind.
I really enjoy d/winders with my son (hopefully daughter soon too)

As I mentioned in 1 of the links - safety first
Hope U have a blast - DNF the slurpees after a session

- doesn't count otherwise


Cheers
AP