Interpretation #3 part one

So my camera was not working and i could not get the person that was going to model for me to stay to paint from life so i just started sketching right into photoshop. I started by drawing in black and wight and built the color over it. It helped with values but i still changed a lot as i added layer over layer. This is just the first part so any suggestions would be great. I was thinking i might try experimenting with some type like the original has.