That’s what Easy CMS is returning:
<img class="total-cms-image" oncontextmenu="return false;" draggable="false" alt='%Judygallery1 -alt%' src="https://www.fisherofmen.co.uk/cms-data/image/Judygallery1.jpg" data-img="https://www.fisherofmen.co.uk/cms-data/image/Judygallery1.jpg" />
<img class="total-cms-image" oncontextmenu="return false;" draggable="false" alt='%Judygallery2 -alt%' src="https://www.fisherofmen.co.uk/cms-data/image/Judygallery2.jpg" data-img="https://www.fisherofmen.co.uk/cms-data/image/Judygallery2.jpg" />
<img class="total-cms-image" oncontextmenu="return false;" draggable="false" alt='%Judygallery3 -alt%' src="https://www.fisherofmen.co.uk/cms-data/image/Judygallery3.jpg" data-img="https://www.fisherofmen.co.uk/cms-data/image/Judygallery3.jpg" />
<img class="total-cms-image" oncontextmenu="return false;" draggable="false" alt='%Judygallery4 -alt%' src="https://www.fisherofmen.co.uk/cms-data/image/Judygallery4.jpg" data-img="https://www.fisherofmen.co.uk/cms-data/image/Judygallery4.jpg" />
<img class="total-cms-image" oncontextmenu="return false;" draggable="false" alt='%Judygallery5 -alt%' src="https://www.fisherofmen.co.uk/cms-data/image/Judygallery5.jpg" data-img="https://www.fisherofmen.co.uk/cms-data/image/Judygallery5.jpg" />
<img class="total-cms-image" oncontextmenu="return false;" draggable="false" alt='%Judygallery6 -alt%' src="https://www.fisherofmen.co.uk/cms-data/image/Judygallery6.jpg" data-img="https://www.fisherofmen.co.uk/cms-data/image/Judygallery6.jpg" />
So somewhere, you should be able to specify the alt text for the image. If you don’t find the right spot I guess you’ll need Joe to have a look at.