Luna Negra Dance Theater's performance last Saturday night at the Harris was part of the ongoing effort by artistic director Eduardo Vilaro (the Reader's pick for best choreographer this year) to nurture female choreographers. The evening featured Nancy Turano's Carmen Act I, from the company's first season a decade ago, plus three other works by women, commissioned by Luna Negra's Latina Choreographer Project. Costumes were lovely, performers (including J.P. Tenuta, smooth as silk on a newly repaired knee) admirable, music interesting (though recorded). But the choreography didn't heat up until the last piece--Annabelle Lopez Ochoa's witty new red-slipper take on a flamenco fantasy, Nube Blanco. Yes, we need more choreographers--Latina or not--like her.