I decided to remake these flags because I knew nothing about flag creation when I made them, they are not intended to replace the originals though.
Feminaesexual
The black-ish purple represents attraction to agender/genderless people. The dark purple is for their attraction to librafeminine people and demigirls. The magenta represents liking any woman/feminine aligned gender. The pink represents attraction to women/fiaspec and the white-pink represents attraction to birchians and hypergender women.
Muscusexual
The light cyan represents their attraction to walnutians and hypergender men. The dark sky blue is for attraction to men/miaspec. The darker blue represents liking any man/masculine aligned gender. The black-ish blue represents their attraction to libramasculine people and demiboys and the black is for attraction to agender/genderless people.
Femuscaesexual
It is a mix of the remade feminaesexual and muscusexual flags. It was inspired by how the term was coined as a combination of feminaesexual and muscusexual, though virfeminasexual is a seperate sexuality.
Virfeminasexual
The black is to represent attraction to agender/genderless and androgynously gendered individuals. The black-ish purple is for their attraction to masculine genders, the dark purple is for liking masculine mixed with androgynous genders. The light violet is for their attraction to androgynous mixed with feminine genders and light purple is for attraction to feminine genders.
Puellraesexual
The light magenta represents their attraction to sprucians and hypergender androgynes. The magenta is for attraction to androgyne/niaspec. The dark purple represents liking any androgyne/androgynous aligned gender. The black-ish purple represents their attraction to libraandrogyne people and demiandrogynes and the black is for attraction to agender/genderless people.
Etbinariisexual
The white represents their attraction to aspenians and hypergender neutrois people. The light ash-ish yellow is for attraction to neutral/uingenders. The lime represents liking any abinary aligned gender. The dark green represents their attraction to outherine genders and the black is for attraction to agender/genderless people.