Comics intended for girls are called "shojo" (girl), and they usually abuse of resources such as big eyes, laces and ribbons, petals, hearts, stars....
The stories are usually romantic. However, they can even be adventure or fantasy stories.
For an adult female audience we can find "josei", which is directed to women. This style is usually more realistic. The stories involve topics of interest to women: relationships, work, etc.
The erotic Manga is called "hentai", which covers any sexual trend. It is usual for female characters to exhibit baby faces and large breasts.