The women in the audience may be enveloped in black but their eyes are on mini-dresses, hotpants and glittering gowns shown by Valentino, Kenzo and other fashion houses on the catwalk in Dubai this week."The turnover of the company is growing in double-digit figures, but here we are growing more than 30 per cent year on year, which is big for us," said Emilio Cabonera Giani, from Valentino, before Valentino's Spring-Summer 2007 collection show in Dubai.Kenzo, Japanese fashion house also showed its Spring-Summer 2007 collection this week and the latest creations from France's Christian