Lt. j.g. Eric Kettani’s release from the Navy was approved so he could go follow his dream to play in the NFL with the Patriots. However, the former Naval Academy running back seems to have another passion: painting. The NFL hopeful tweeted that he just shipped one of his paintings, “Limitless,” to the American Heart Association Fundraiser to be auctioned off with a starting bid of $15,000. His website, www.erickettani.com, says that Kettani is a “self taught artist who has always had a great appreciation for the arts.” His paintings are on wood panels and finished with an apoxy resin…