We have put together another very special Flickr group showcase , our twenty first of 2013 with some of our favorite images and some great new talent that have been uploaded to our Flickr group – Mobile Photography & Imagery, this week. The quality of submissions continues to rise, so we have decided to make our showcases that much bigger to incorporate as much of this stunning mobile art and photography as we can and to get it out to a wider audience. Each image can be viewed on Flickr by clicking on the relevant artist below: Annie Mallegol, ari_5, Mark T Simmons, Sean Hayes, Shel Serkin, Jeanette Vazquez, Masaki…