When creating traditional art, it is often beneficial for artists to explore as many tools as possible to figure out what Works best for each person, often different methods wields interesting marks that an average brush or pen does not achieve unless it is forced..
When using tools that you are not used to, you become slightly vulnerable, you tread on new grounds that you have not yet experienced (unless you have used this method already).
When you use materials that you cannot fully control, you produce works that are uneven and it forces you to make marks that you previously wouldn't have done, leading to some unpredictable pieces of art... the longer the tool the more unpredictable the work.
In this demo I have used a few shrubs bound together using string and a twig, by using ink as a medium I can show you what kind of marks you can achieve
By using this method you can then fill in all the details with whatever you like, similar to what I did here (this is of course a rough piece to show what can be done), I hope you will find this helpful.