Hi,
to determinate the sex, we need a ,,Tail picture´´! Best from above! Or put it in a smal Plastic Box and make the picture from the undersite.... Only Head shots are not enought.
But, when the are 2 years old, you must see a typical Viper shaped Hemipenis section...
In my A. chlorechis I have seen it the was one very smal WC ones ( 30 -35 cm).