As filmmakers and multi-talented artists, you can't get much more nakedly transparent than Josephine Decker and Zefrey Throwell, who bare their bodies and souls with their Tribeca-premiering documentary, Flames. Shot over the course of five years, the project charts the immensely passionate and profound relationship between the two artists, watching the spectacular romance, excitement and adventure of their relationship at its peak, nd the fallout as Decker and Throwell…