Open Images in Preview doesn't work in Automator (How to use Automator task to open screenshots in Preview automatically) I've read another post that seemed to address how to use Automator to open screenshots automatically. (Automator task to open screenshots in Preview automatically) I've followed the steps exactly, but the last step still doesn't work (opening the screenshot in Preview)

So, I'm stuck.  I really want the easiest solution to get Preview to open after I take an Interactive or Full Screenshot.  I thought this may be it but...
After playing with it a little bit I couldn't get the process to work as listed in your screenshot, either. Here's a flow which works - in fact, it took the screenshot below. Note that you need to set this up as a service in order to assign it a keyboard shortcut. (Create a new Automator workflow and select Service as the document type.) Otherwise, if you save it as an app, you have to run the app every time you want to take a screenshot.

Once you have saved your workflow as a service, go to System Preferences > Keyboard > Shortcuts and select Services on the left-hand side, then scroll down on the right to find your service and set a keyboard shortcut.