More parts followed, including Fantine in the original Amsterdam production of Les Misérables in 1991, but the great break came in 1992, when she got the title role in the world premiere of Elisabeth in Vienna, Austria.
Though the Viennese papers wrote a lot of scathing criticism, such as "Munter geht die Sisi unter" ("Sisi perishes") and they denied Douwes singing and acting talent of any kind, Douwes became (along with Uwe Kröger) an acclaimed musical star and reprised the title role numerous times.
Additionally she did the gala evenings In love with Musical along with her colleagues Uwe Kröger, Marika Lichter and Viktor Gernot.
In March 2003 she got the chance to play Milady de Winter in the world premiere of the Dutch musical 3 Musketiers (The Three Musketeers).
Then she went back to Germany to play Milady de Winter again in the German premiere of 3 Musketiere in Theater des Westens in Berlin.
The winner was cast as Eva Perón, a role Douwes played over a decade ago, in a new Dutch production of Evita.
In late 2008, she donned the turban as the infamous Norma Desmond in the Dutch touring production of Andrew Lloyd Webber's Sunset Boulevard, alternating in the lead role with her friend and previous Les Misérables, Chicago and Fosse co-star, Simone Kleinsma.
In 2009 she returned yet again to judge and coach the contestants of a new Op Zoek Naar... series, this time searching for the woman who would play Mary Poppins.