The annual blossoming of Buenos Aires’ Jacarandá trees has inspired an army of expat bloggers to march the streets with their digital cameras. Robert Wright started much of the craze (follow-up here), convincing Jeff Barry to walk over to Parque Lezama and “PDF” to stroll down Belgrano Avenue in Rosario. “Miss Cupcake” uses the mark of nature to look back over the past year.