Nice work, If i may.
I'd like to say if you could incorporate more of the very last row on your reference sheet, the 2nd last and 3rd last design ideas more in your vision, might put a little more "femininity" to the model.
So maybe more female than stone is what i am trying to say. hope it helps nice progress, wanted to just mention that before you get to far so that you have time to think it over and decide what is best for your design.
Those 2 interest me and just want to see more of that in your design choices. will be checking this out from time to time.