I made a few changes here:
1.) In the 'Get Info' action in the first Activity, I made sure that the submit button wasn't skipping the Validation Activity

2.) In order to keep people from seeing the Approval form, I removed the 'Activate Activity' option in the Validation form. (I also added the 'Confirm Request' attribute to the bottom of the form in the 'Command Selected Attribute' field for later use in the 'Approved Action'.)

3.) Then I added a delay and a redirect to force people away from the workflow:

4.) And finally I set a filter to only activate the 'Approved' activity if the form had actually been confirmed:
