Place your bets on which one of these is Jennifer Lawrence's Oscar gown - Christian Dior Haute Couture Spring / Summer 2013 is here!

Raf Simons' second couture collection for the label was an altogether lighter and dreamier affair than his first, with flowers and embroidery in abundance, and it seems to have elicited the same positive response as its predecessor from those in the know.

Where Simons excels is in knowing when to stop. John Galliano was a showman, and would pile on the detail in a way many designers could never manage. Simons doesn't try to emulate this, but instead gives Dior Couture a feeling of modern restraint. There is all the intricate detail we expect from a couture collection - just look at those heavy full skirts strewn with flowers and embroidery - but the shapes are simple, with none of the origami folding or renaissance flair of the 'old' Dior. Instead we get lampshade dresses, straight-cut strapless designs, and column dresses with high necklines.

The question is, does Simons' simple approach to Couture work? The simple shapes run the risk of looking ill-fitting at some points, particularly when it comes to a voluminous pink strapless dress, and oddly-matched separates with cropped jackets. Tricky combinations like black net over cream satin felt slightly like they were running into 90s prom dress territory, but simple bodices and luxury fabrics may save them.

More successful are the romantic dresses and gowns - from a black a-line sheer dress covered in tiny yellow flowers to long, structured pale pink evening gowns and white dresses with pink detail at the bust. These are the dresses we will no doubt see the A-list wearing on the red carpet.

What do you think? Is this a triumph, or does the new king of Dior Couture need to up his game? View the gallery to make your decision