Yeah, the problem here is not the image tags you use, it's the image URLs you use.
That is not the image URL. that's the thumbnail code from google image search - which is... not a bloody image.
What you want to do is, once you're on this screen:
click the 'View Image' button, then once it loads, right click it and select the "Copy Image Location" option. Now you can use that in the URL tag, like so:
This is not our bug. This is your bug. Or dog, rather.