Source for the HM DS wedding pictures

I’m looking for the source of the first picture where all the bachelorettes for the Harvest moon DS show off their wedding dresses. I got this picture from another Reddit post on here and I tried reverse image searching but no luck. It’s quite possible that all the illustrations are individual aka edited all together. I checked the 15 anniversary art book to see if there but the it’s not in there either. I did find other wedding dress illustrations for Back to Nature and Wonderful life tho. My current theory is that the original illustrations come from old scans of the Japanese strategy guide of Harvest moon DS or somewhere from Igusa blog. Does anyone have any idea?