Inspired by the omnipresent heat. Not my proudest creation, but if I could somehow teleport there right now, I wouldn't hesitate. I might even be able to build a slightly better sand castle...
This week's blogpost: https://honestmisskate.blogspot.com/2018/08/sandcastle-upon-hdri.html
Great job with the depth of field (although the background lacks resolution it seems). Cool idea :)