SEO A list of photographers one photo plus caption ul or dl

Question

<ul>
<li title='John Doe'>
    <div class='item' id='123'>
        <span class='left'>John Doe</span>
        <span class='right'>USA</span>
    </div>
    <div class='expand'>
        <img class='photo' src='' alt='John Doe'/>
        <p>The caption</p>
    </div>
</li>
</ul>

This is the structure of a list of photographers with one photo and one caption each.
will the seo be better if I restructure it like this:
<dl>
<dt title='John Doe' id='123'>
    <span class='left'>John Doe</span>
    <span class='right'>USA</span>
</dt>
<dd>
    <img class='photo' src='' alt='John Doe'/>
    <p>The caption</p>
</dd>
</dl>