This photo simply blew my mind apart. I would like to be enlightened by kind souls on how to produce this kind of effect? As in the smooth smokey effect of the gravy. I've seen this effect being used on waterfalls or lake photos too. I am just guessing that it is a photoshop function, can any experts throw some hints? Thank you in advance.
Sorry for not crediting the photo because I can't remember where I downloaded this photo from. If the owner of this photo is in this forum, my apology to you for not crediting.