What you see is actually the correct behavior when showing the standard notification widget. This widget not only shows the notification of your app, but of all apps.
What you really wanted to see is your own widget. You first have to enable it:
- Start Smart Connect on your phone
- Choose SmartWatch
- Settings
- Apps
- Your app
- Select to show as widget
Now on your SmartWatch scroll to the right and you will see your own widget with the icon in the right place.