Views content show current state - workbench
Have you already installed workbench moderation module? 

I have used this module and it gives you a Workbench page with the tabs for each state of the nodes. The user can see which nodes are in Draft state and which are in review state. 

You can adjust the look and feel of the page using panels and make it the way you want to display the content of each state.

In the views, you can add exposed filters for any other specific field you want to filter.