Being inspired by the latest Art Spotlight by ALAN WYATT, wanted to replicate a similar effect but with my own node setting. This also turned out to be a good practice to improve my digital painting skill.
Enabled this with pretty simple node setting, with voronoi texture to enable the touch of a brush, and hand-painted image with bright/contrast color node to emphasize the brightness. The screenshot of the setting is the one from my other work, but the idea is the same. I have layered the similar material 3 times, in order to give more depth to it.
[Node setting] [Hand-painted image]