Loewe is one of the best-known Spanish fashion firms (now owned By Henessy and thus in french hands). It started out as supplier of fine leather goods and developed into silk scarves first and now clothes (much like Hermès). Its inhouse designer is Narciso Rodriguez, an american of hispnaic (cuban, I think) roots.
Moschino is an Italian fashion house. It was founded by Franco Moschino (now dead from aids) and its best-known line is a pret-a porter line called "Cheap and Chic" that is supposed to be a bit transgressive and a kick in the face of the fashion establishment.
The only other point is "de la talla de" should be rendered as "as important as" or something to that effect.
How come I never get fun translations like this? Oh, well, back to my exciting Contrato de Compraventa ;)
Suerte