My usual disclaimer: I'm not an expert in anything.
When the System Image finished, were you shown a dialog box asking if you wanted to create a System Repair Disk? And after that did you get a prompt saying the System Image completed successfully? If so, when you open the start menu and click on Computer, is your external hard drive listed as L:? (I'm guessing it's L: since that's the listing on your second screenshot.)
When you open L: (either by right-clicking > open
or by double-clicking the drive icon) you should see a file called WindowsImageBackup.
When you open that file you should see a new file called
{your name}-PC. When you right-click on that file > properties you should definitely see that it contains at least one file and 3 folders.
The fact that your screenshot doesn't show this makes me believe the System Image wasn't successfully created. How much free space do you have on the external hard drive and what was the estimated free space required for the System Image? How is the external hard drive formatted (FAT32 or NTFS?) Do you have a different hard drive you could try?