I ran my code through the W3C Validator and it keeps showing me the error that emphasis cannot be a child element of any of the following: strong, figcaption or figure.
<figure>
<img src = "#">
<emphasis><figcaption id = "img-caption"><strong>Queen of Curves</strong></figcaption></emphasis>
</figure>
First, <emphasis> is no valid HTML tag, I think you mean <em> instead?
Second, the <figcaption> element needs to be a direct child of the <figure> element. I you want to wrap the figcaption in <em> tags, put them directly around the text (like you did with the <strong> tags).