We here at Tattoosday have been clinging to a dwindling backlog of 2015 tattoos, so it was a true delight when the thermometer cracked 60 degrees yesterday in New York City. Aside from the obvious comfort factor, for the inkspotter, there is the added bonus of seeing everyone's tattoos return to visibility after several months of hiding under winter jackets. Our first spring offering was spotted on Kylie, on the Whitehall Street subway platform. Behold this fantastic tattoo: This spectacular…