Complex sentence: On the back of this success, Galliano rented studio space in London, but his talent was not matched by a head for business, moreover, he would take his enjoyment of London's nightlife to extremes.
Split into simpler sentences: On the back of this success, Galliano rented studio space in London, but his talent was not matched by a head for business. Moreover, he would take his enjoyment of London's nightlife to extremes.