I've gone through quite a few of these. It always surprises me when I open the pen and find the cartridge running on empty. I don't think I've ever emptied one of these in my life!
And 1 more page to ink. Touching up previous pages is next on the agenda. I'm a bit of a perfectionist so I know I can spend too much time doing that. I'll have to force myself to stop at some point otherwise it'll never get done.
Colors after that.