Usually, I sketch with graphite pencil, ink and then color. On these sketches I tried inking as the last stage of my painting. Both are painted with watercolor

Right one was done first (I’m a leftie :p) and inked with a sepia brush pen.

Left one (which I’m much fond of) was outilined with a black colored pencil. I’m trying to get that same effect with ink. No luck as of yet, but I’m hopeful.