I would love
Marla Zoe, with Marlie as the nickname.
Marlena ("mar-LAY-nah") would also be a pretty formal first name. This might be something to think about for when she is applying for jobs, etc.
Nikita reminds me of
Nikita Krushchev, so I think it's a male name in Russia. How about
Nikoleta,
Nicoletta or
Colette? or just
Nika?
Avalyn is fine, but I'd prefer
Evelyn,
Evelina or
Ava.
Kinsey reminds me of the Kinsey sex research institute.
For boys' names, I really like
Asher, but it is so close to your first name-- it might get confusing (esp. mail, phone calls). What about Easton
Asher?
Good luck!
(My name list:
http://www.babynames.com/namelist/9516801)