First Impressions Interesting - I like the focus on her. Her pink jacket brings her into play more. I like the centered composition and framing too.
Photograph Information, Technicals & Composition Review 1.8 explains your nice shallow focus. Not bad sharpness for 1/50. As mentioned, I like your choice of composition and think it suits this well.
It seems a candid, but the expression is not so interesting to me. She is aware, but seemingly only just - this translates to a slightly intrusive feel, for me as a viewer. This could be your intent within the image.
Comments, Score & Placement Review Top 10 is definitely a good place to finish. A lot of praise in your comments and a few fans thrown in too. 6.06 and top ten - very cruisey.
Summary An interesting image that might not have worked in b&w, nice close up style of Street Photography that met the Challenge.
Yes i've always wanted to take a picture like this! You've found a good subject. The sharp focus with narrow DoF and light really make this one, gl 8 from me