How to add a glossy layer

[meetdilip]

I want to learn how to add a glossy blurred layer to a wallpaper (sample attached). I am unable to attach the one intended as it is 4K and heavy. But it looks more or less the same. It would be great to have some tips on the same.


Below is the one I made. Giving plain link as it is heavy (4K)

https://i.imgur.com/WFJ1OP2.png