I think sharpening strokes is a good idea, but it also depends on what technique you use as well. When it comes to the example you used, I love softer edges since it looks like a study/speed painting. When it looks like that to me I do not expect crisp clean lines However, if it's an actual painting depending on how much time and effort I believe you can create sharp pictures without using sharpen, but it is still an awesome tool to use
Just discovered this! Never thought of sharpening. I generally tend to leave things blurred because I thought it gave the illusion of life rather than brushstrokes (forgetting, I just realized, that "life" is very textured. XD)
Definitely keeping this in mind! Thanks for posting!
It does require a careful balance. It's definitely good to have some soft and lost edges in the mix. They can go along way towards creating a sense of atmosphere (which really helps that life-like illusion). Mainly reserve the sharp edges for focal points and important details.