I'm a bit disillusioned about French childrenswear atm tbh
Used to love Cyrillus and Petit Bateau but I don't think they've kept up with price and quality. Didn't used to mind paying a bit more, but not when the quality has diminished.
For example, usually buy dd a summer mac from Cyrillus but recently bought one from Zara which was just as good quality and half the price. And I'm particular about materials and finish.
Jacadi basics range sometimes worth having a look at (especially at sale time). Bonpoint has gone loopy in terms of pricing.
Agree with Tethersend that all the colours seem very pastelly and "muddy" (probably because the dyes are cheaper that way). I think a lot of dc look v. washed out in taupes and muddy pinks.
Still like Petit Bateau "milleraies" clothing here and they do wash well but they are not cheap. I know it's a different beast but I recently bought one of these for dd from Boden and the quality is really good and she looks lovely in it (better in rl than in photo).
If you do go for French makes though, remember to buy the next size up - the sizing is tiny!
Tartine and Bonpoint use fantastic fabrics (though boo for lots of fur at Bonpoint) and they're much more design / fashion conscious. I think the subtle colours are much more adult than the Boden type brights - a lot of the brown / beige / neutrals / greys that Bonpoint use are just adult clothes scaled down