I would say female. R. Auriculatus females have a pronounced ventral pocket, but the males have an even larger hemipenal bulge. Sometimes the bulges develop later on males. This species takes time to get to adulthood and sexual diamorphism can appear out of the blue at juvenile to sub adult age. The spurs are not overly apparent, which usually is seen before or as an indicator of sex when developing. You have some nicely colored R. auriculatus.