mère et filles
You would say "J'ai trois filles" in French to indicate that you have three daughters.
belles filles
j'ai trois filles
deux filles
Our beautiful daughters is "nos belles filles". French speakers would probably use a workaround, as "belles-filles" (hyphenated, but sounding the same) means daughters in law.
If it is YOUR mother or daughter just say hi mum/daughter or Dear Mother or daughters name.
mere
You can say "Ma mère s'appelle" in French to express "my mother is called".
Mére is Mother in French. It is pronounced like you would say Mare, such as a horse.
To say "your mother is short" in French, you would say "ta mère est petite."
Mère
ma mere