The house was painted a dazzling white; the outside shutters, or jalousies, were green. in the yard, which was kept scrupulously neat, were flowers and plants of every description which flourishes in south louisiana. within doors the appointments were perfect after the conventional type. the softest carpets and rugs covered the floors; rich and tasteful draperies hung at doors and windows. which best explains how the author establishes mood in the excerpt?