playing with ways to add interest

Hello everyone, Today I wanted to talk about ways you could add interest with vine charcoal. I've been going around youtube searching for charcoal techniques. I came across a guy and if I could find his link i'll post it here. But I came across a guy who used the flat end of the vine charcoal. Now I knew i could do this but I never really tempted it with vine charcoal. here are my results.