I was going to go into full detail for this but then got lazy and never looked at it again. (I also started to hate it after I got halfway done)

Dragon sketch that I may or may not ever finish.

I did this with brush markers. The challenge in it? I didn't use the color black at all. I combined purple, green and blue for shading.

So pen doodles to get me into shading with a pen again. (it's been months since I've tried pen art)