I think i know the link. https://www.reddit.com/r/Windows11/comments/135s87x/themed_all_my_devices_inspired_from_googles/Your link doesn't work (or doesn't contain any photo), so either post a correct link or attach a screenshot to your post with the said image. In any case, just from your description which seems to indicate a more complex skin, I can tell that without the original skin, it won't be that easy to recreate it, and you'll be the one to do it (i.e. we'll help for sure, but won't write all the code for you).
A valid image to see how it looks like is needed anyway. You or anyone trying to search it might get lucky and find it via an image search, depending on how close the said image is to the skin preview image, if any.
this is what i found which matches his discription
Statistics: Posted by aaronj3245 — Yesterday, 10:38 am