Sketch Practice

I didn't do any work last week, I wish I could do at least two sketches at every weekend. And this is what I did today.

The following are some process photos, at first I sketched by some slightly lines to make sure the outline of this girl was correct, then made it strong after the structure was ok.

This was the first version I finished, but I wasn't satisfied with the shadow on her dress.

Then I decided to erase out like this way, and started it again and tried to be patient. lol

Then finished it :) Can you see the difference? :P