David and Victoria Beckham are no doubt bursting with pride after watching their eldest son Brooklyn tie the knot with actress Nicola Peltz, although fans noticed a glaring faux pas from Victoria in her first Instagram post following the wedding.SEE: Victoria and David Beckham break tradition in unseen photos from Brooklyn's weddingTaking to social media to share her love for Brooklyn and her new daughter-in-law, Victoria shared a stunning photograph of the newlyweds exclusively captured by VOGUE. The former Spice Girl captioned the post: "Congratulations Mr and Mrs Beckham X Welcome to the family," followed by a string of pink heart emojis.WATCH: Brooklyn Beckham marries Nicola Peltz - Everything you need to knowThough Victoria's sweet message is welcoming and warm, some fans were quick to question why she had removed "Peltz" from the duo's surname following their nuptials.Taking to his Instagram page to share the first pictures from their big day, Brooklyn revealed he will now be known as Brooklyn Joseph Peltz Beckham while his wife will become Nicola Peltz Beckham.A post shared by Victoria Beckham (@victoriabeckham)Victoria wished the newlyweds well on Instagram"Mr.