DD2 is 2 days old and still no name. DD1 is called Amy and we did like Amber for DD2 but had dismissed this before as being too similar. Now DD2 is here I think it would really suit her but worried too similar - is it really giving that the sound is 'ah' rather than 'ay'? DH likes Zoe which is ok but I don't love it. My parents like Alice which we had planned as middle name and DH not so keen on this as first name.
Amy and Amber sounds lovely, I too think Amy and Zoe sound more samey on account of the -ee sound ending. I'd absolutely avoid that combination. My DDs share the same initial as me, we didn't do it deliberately, our favourite names just happened to begin with that letter. I reasoned that they will only really be referred to as a pair in their childhood, after that they're on their own and might as well have your first choice names. What cracks me up is sibling names where the vowels "match", such as for instance Harry and Nancy or Isla and Micah, that's when I think "Wow, they really like the sound of that!" Congratulations, what a lovely thing to be naming a baby (smile)
I think it's nice. Love Amber, but DH vetoed it. I don't think it's too similar. The second syllables are different enough. It's not like you have a Lara and Tara. I do however think Zoe is a better middle name for Amber than Alice. So maybe go with Amber Zoe?
Amy and Amber are both lovely names but personally I avoided the same initial so when they grow up and are getting post there won't be any confusion over which Miss A Smith the letter is for. Of course post may be completely obsolete by then!