Not meaning to sound too harsh, but above screenshots are a perfect example of why these days I'm always completely stripping the WordPress admin interface.
Especially now core features are first developed as plugins there isn't a meta box left alike.

The contact form using the media element design would be a great place to start, instead of the 3.5 look it still has right now.

Besides that, the widget width input field looks like to use yet another custom class.