I am finding the brush and ink sketching is a little tricky. Firstly the ink I am using (Mont Blanc Blue fountain pen ink) is a little tricky to control. Once the ink is down there is no erasing. Successive applications of ink makes the area darker and once added cannot easily be lightened again. It is also difficult for me to get used to just one colour - but I like the result. It is teaching me each day to look at the different shades of a scene.
Just imagine if you could only see in shades of grey..