You should always open up the test suite and read the full error messages.
They help you find and fix the errors.
Is there something in the error message that you need help with?
For example, in this one
5. Within the "img-div" element, I should see either a <figcaption> or <div> element with a corresponding id="img-caption" that contains textual content describing the image shown in "img-div".
You wrote this
<p id="caption text-center">Giannis in milwaukee bucks uniform</p>
The test is looking for div or figcaption element and you need to use the correct id name.
Also, you can’t have two ids grouped together.
You can only do that with classes.