The first thing I tweeted on hearing about the birth of Harper Seven Beckham was that Suri Cruise now faced some serious competition. I regretted this almost instantly. Because of all the things I wish for that much longed for little girl, being another Suri Cruise isn’t one of them. Suri Cruise, let me refresh your memory. According to Glamour readers, she is the 21st best dressed women in the world in 2011 (shame on anyone who voted for her!).  She has a shoe collection that includes Louboutins and Marc Jacob shoes and is reputedly worth £90,000. She’s a huge fan of Marc Jacobs. Oh, and did I mention she’s…