Twisted Pinetree

Here I just wanted to train back with promarker, ink, graphite and so on so this piece was an unexpected but much welcome one, still as a bookmark gift for her :)
I used a 400g/m² paper, graphite (carpenter HB flat lead pencil for draft, 2B flat lead mechanical pen to lay out first details. I love these flat leads pencils for traditional work ), then inked it with 0.3 to 0.05mm inkpens and finished that with cold/warm grey promarker tones :)