I have a little Moleskine (3.5 x 5.5) notebook that I only draw skulls in. I started in November of 2013 and I do one whenever the urge strikes me. It's not like a skull-a-day thing but sometimes I do get into a period where I will draw one every day for a while then I won't draw any for months. I even lost it for a while and was very sad. I think the longest gap between pages has been a year. This is the most recent skull, drawn on 05.28.2018. Most of them are posted on my Instagram but you have to scroll back a ways to get at the bulk of them.
Ink and Watercolor sketch of octopus. Normally I start with a pencil outline, then go over it with micron pens. But I'm learning to skip the pencil step and just sketch with ink. I helps you not to overthink things. Once you lay the ink line down on the paper it's there to stay. You can't erase and there isn't an undo like you have when working digitally. You just have to work around any "mistakes" you make. I'm also working on sketching faster because I just don't have that much free time these days. Trying to produce a new sketch every day is a real challenge.
Pen drawing of the gate into St Cedmas Church in Larne, Northern Ireland. I got married in the church in 2004. My wife’s parents were married here too in the 1960s.