Good:
Sarah
Louise
Denise (quite surprising!)
No:
Charlie. Only as a nickname for Charlotte or Charlene or something. NOT as a full name.
Loretta. Better than some of the names on here, but so dated and middle-aged sounding.
Giula. I assume you are trying for the Italian version of Julia, which is spelled Giulia. Only use it if you have strong Italian heritage.
Ela. Is this supposed to be Ella?
Kaisy. I guess this is Casey, which is a primarily a boy's name. I know it has been done on girls, but if you must, at least spell it properly.
Ashleigh. Also misspelled. It's Ashley, and it's quite overdone and trendy at the moment.
Gingella. Saved this for last because it's just hideous. It sounds like a sexually transmitted disease. Ach, I caught the gingella from that bloke at the bar. Yuck.