Evening at the opera

Went to 'The Entführung aus dem Serail' of Mozart. For me it was a very good performance. Singers all right (Elzbieta Szmytka as Konstanze was not so good in the first act, but she did very very well in the second act). Scenes and costumes also good. The only think that bothered me is that they build a platform that came partly above the orchestra. This way they cut the whole scene in three parts : a platform in front, a pit with an oriental water-fountain in the middle and a 'background' in which they showed in each act a different landscape (1st act : serail-room, 2nd act : a garden at night, 3rd act : garden landscape during day with broken column ?). I didn't understand why he wanted to build the platform and almost not use the second-pit-scenery. Apart from this negative issue I had a wonderfull evening.