Hi @NorthumbrianTin,
Thank you for your question.
You can achieve it by adding the following CSS code in the Custom CSS code option of your theme on the below path.
Admin Area -> Appearance -> Theme Settings -> Custom Code -> CSS Code
.sh-footer-widgets .sh-portfolio-widget-item .sh-ratio-content,
.sh-footer-widgets .sh-recent-posts-widgets-item-thumb {
border-radius: 100%;
overflow: hidden;
}
Best regards,
Shufflehound team