wagtail_bakerydemo/bakerydemo/jinja2/includes/card/picture-card.html

<div class="picture-card">
    <a class="picture-card__link" href="{{ page.url }}">
        <figure class="picture-card__image">
            {% if portrait %}
                {{ image(page.image, "fill-433x487-c100", loading="lazy") }}
            {% else %}
                {{ image(page.image, "fill-645x480-c75", loading="lazy") }}
            {% endif %}
            <div class="picture-card__contents">
                <h3 class="picture-card__title">{{ page.title }}</h3>
            </div>
        </figure>
    </a>
</div>