i can see one def male thats it... rest are too small to sex from your pic... they prob can be sexed with 80-90% accuracy but i'd need to see them in the flesh and be able to turn them around and look at them sideways and from underneath as well as from above... sometimes feeling for rough hair along back of body can help with some varieties...
like sexing small whiptails you can feel the males beard by gently running finger along the side of its head... females are smooth... males little like a 1-2 day growth like on a human male...