WIP - Signature logo

This is a fun project. A friend of mine wanted a signature-esque logo, but wasn't sure she wanted her exact signature, as it was a bit inconsistent. She had certain letters and characteristics in several of her signatures (starred signatures in js_logo_rough0.jpg) which she wanted to combine. The attached files (js_logo_rough1-js_logo_rough4) showcase several different explorations and sketches. The shot itself is the vectorized progress so far. Any thoughts?