This video describes the process of painting a realistic scene using modified Photoshop brushes to capture the grit and random variety found in nature. The techniques used here are useful for developing concept art for Films and Video Games.
References:
Jeremy Fenske
https://www.artstation.com/jandrew
https://www.youtube.com/watch?v=mMnAKqttr4Q&t=113s
https://gumroad.com/jeremyfenske
Grzegorz Rutkowski
https://www.artstation.com/rutkowski
https://gumroad.com/grzegorzrutkowski
Ryan Lang
https://www.artstation.com/ryanlangdraws
https://gumroad.com/ryanlangdraws
Eytan Zana
https://www.artstation.com/eytan
https://gumroad.com/eytanzana
John Sweeney
https://www.artstation.com/johnsweeney