I’m quite happy with the outcome of this drawing, which was made using my fountain pen:

As I may have mentioned before, I do enjoy the possibilities that the fountain pen gives me.
Instead of switching between different sizes of fineliner pens, you just add or remove pressure on the nib.
I don’t have waterproof ink in it, though.
So it’ll have to stay uncoloured 🙂
Colored pencil might work well. Perhaps nothing bold. Just hints of color. Or maybe just browns and grays for s sepia effect.
That’s a good idea, Carl. Maybe colouring pencils should be my next buy 🙂