I have 1 more stormtrooper to paint and in honor of Gaarkhan's brutality in the last campaign (**** Vibroblade with cleave 2), I don't want to paint the usual blaster damage but rather a slash wound/damage. But as I'm inexperienced I don't know the best way to do this.
I was thinking about painting a light gray line and then inside that a darker gray line to make it seem deeper cut and perhaps carefully add dark wash on the line to darken it further. Could this work? Or are there better ways? I'd like to paint the damage like it was caused by an ax or a vibroblade.