Ayumi H. answered 03/20/19
Native Japanese Speaker with teaching and business experiences
女っぽい means vey feminine, sexy and probably often used to express sexiness of a woman as a compliment.
女らしい is used to describe a woman when she is displaying very feminine charactrustics and mannerisms.
Above dptwo are interchangeable, although they have slightly different connections.
彼女は本当に女みたい - This is a bit off sentence without the context. 彼女は本当に女らしい is okay, but not 彼女は本当に女みたい.
女みたい means “ like woman” so you may say 彼は女みたい。(He looks like a woman.) or 彼女は男みたい。