Step 2 - more contrast, deep shadow under the bench, refining the shape of her head....
Step 3 - changed up the color in the background behind her, modified her hair, more detail to the bench and changed the color of her big, slouchy purse:
Step 4 - a touch of lipstick and more attention to her legs and feet. Hmmm, still muddling with them:
Finished? Not sure -- think I prefer her hair as in the step above and still not sure about the wall behind her head nor her folded arms. Added the iphone earbuds but they're not clearly attached to her head! Happy with her legs and shoes, tho, very happy:
Back to the drawing board -- stay tuned for the finale.