Not to draw any particular conclusion here but just to push at the inspirations.
First ''Mahler's Symphony No. 5 in C sharp minor'' (1901-2). Seen as the most conventional symphony of an unconventional composer, it's 4th movement makes an uncanny return in opening and closing Visconti's film Death in Venice (1971 but set in 1911). Itself a reworking of Thomas Mann's novella of the same title (1912), a tale of not even a doomed romance, more an unnoticed infatuated gaze of a dying author (composer in Visconti's reworking) upon a beautiful youth. Mahler's 4th movement of the 5th opens and closes Schwab's show soundtrack.
Second ''The Portrait of a Lady''. We're probably to think of the Henry James novel (1881) which is held to close a phase in James's ouevre and which undermines the conventions of it's time in it's treatment of sexual matters. A tale of a doomed romance in the sense of a transatlantic mismatched marriage, it is also revisited in TS Eliot's poem of the same name (1915) both of which portray upper class society as treacherous, empty and characterised by suffering.
Thirdly ''Eau de Nil'' the bluey yellow green colour which does appear in the collection and which has associations with art nouveau. It's also the title of the first french sound film (1928) but which in fact marks the end of an era in French film production with both Gaumont and Pathe retiring shortly after and the baton passing to Hollywood and the start of it's golden age.
Lives and era's passing, challenging convention, doomed romances, uncanny returns, reworkings across literature, film, poetry and music. And bodies of water - Eau de Nil being of course 'water of the Nile'; Venice; the Atlantic. We might also think of Charon the ferryman of the dead from Greek mythology. And, this season, any references to deaths/new beginnings are bound to call to mind the winter solstice and Mayan prophecy.
Latterly, post show, Schwab also raises Dietrich; that the collection has a biomorphic intent - fusion of garment and dermis; a vison of woman as window. Or perhaps as screen, I might venture to add.