Girls - love Emma - great classic, not overused right now. Rest a bit overused, other than Sienna and Nina which am not mad on. Other thoughts - Iona, Rosanagh, Fenella, Flora, Lorna, Ailsa (all great Scottish names) or Serena, Cecilia, Cordelia, Adela, Cassia, Phoebe, Sylvie, Adela, Marianne, Annabel
Boys - LOVE Alistair, also love Arthur but overused, Andrew a great underused classic. Quite like Owen. Malcolm and Graham - both sound v old fashioned outside Scotland (if you care) and bit early for a revival. Lennox, Lloyd and Murray are all a bit downmarket, and I think that when surname names get popular they can end up w a very downmarket rep eg Ryan, Taylor.
Other thoughts - Alexander, Kester, Struan, Lorne, Angus, Robert, Guy, Joel, Luke/Lucas, Nathaniel/Nathan, Reuben, Ronan, Jerome, Jesse, Jethro, Michael