Sullivan includes custom styling for all WooCommerce pages and features, and it also adds a couple of custom ones on top of them. It has search with instant results served over AJAX, dropdown modals for the basket and account settings/login in the header, slideshows on the shop page and blog page, optional sticky menu, a fallback image setting, and much more.
I actually finished Sullivan a couple of months ago, just after Christmas. When the theme was finally packaged up and submitted to WordPress.org for review, I was too tired of looking at it to be bothered to setup a demo installation, so I let it sit in the drawer for a while. It’s been slowly making its way through the theme review queue since then. It was assigned a reviewer this week, which usually means a release is pretty close, so I figured it was time to get started with the theme page and demo installation.
Update: Sullivan has now been released. You can download it through WordPress.org.