So I've been watching a lot of Artwork by Christopher Cayco videos lately so I've been all about the freehand brush pen drawings. Be sure to check out his live drawings at least. It's like watching a wizard do magic on paper, to me anyway hah.
How it works is you need some kind of ink and brush - brush pens are definitely easier than using raw ink and brushes. Or at least cleaner and takes up less space. Cuz for raw ink you need the ink well, some kind of palette, some kind of towel, glass of water, brushes, and heavy duty paper. Anyway, you have your brush and ink and then you just draw! No pre-sketching in pencil. Just brush to paper and go. I haven't drawn in straight ink like that in ages and it was so freeing and fun and I felt like my wrist was opening up more. Super nice. Highly recommended.
with love - M