Alright , here is the process for my Katana Shoujo piece Feel free to ask questions I'll try my best to answer.
FREQUENTLY ASKED QUESTION - What did you do to the outline? : I merged the outline and flat color layer together. From there on , I paint over and over make things smoother (It can be done in another layer if you are not confident) Keep refining and take your time. Patience is the key , like ALWAYS.
also check out my other early sketches at my Facebook page don't forget to hit like and share alright, SEE YOU GUYS THERE