I think my favourite medium these days is Ink. I love drawing with Ink pens, specifically with Faber Castelle pens.
This is a piece I took my time with, I practiced my paitence and decided to not rush through it. The Very tiny circles for the shaded area took forever!
I love how this one turned out! I'm currently making a 36' x 48' version of this drawing which is taking me months to finish.