use html figure and figcaption

For the image paragraph
paragraph--bp-image.html.twig

Change to use html figute with figcapture

v{{ attributes.addClass(classes) }}>
  <div class="paragraph__column">
    {% if content.bp_link|render is not empty %}
      <a href="{{ content.bp_link.0['#url'] }}">
    {% endif %}
        <figure class="figure">
      {{ content|without('bp_width', 'bp_background', 'bp_link','field_bijschrift_bp_image') }}
          <figcaption class="figure-caption>{{ content.field_bijschrift_bp_image }}</figcaption>
        </figure>
    {% if content.bp_link|render is not empty %}
      </a>
    {% endif %}
  </div>
</div>