Another ball point pen portrait || Colored in two different ways

Hello everyone, i am here to share today's second portrait drawing. I did the same thing with this one, what i did before. Because this was a female portrait, i started with pink and at the end i thought the portrait could use a little more darker color, so i started shading the hair elements with the blue color..
The blue and pink creates this amazing new color and i am just loving it.
Instead of drawing with just blue or just pink its more fun to do this with both pen.
Of course i could just leave it with one color when it looks decent enough but i take the risk to add a different color.
So far all of these are turning out great.

Here are they individually

Here are some process shots:

Reference image for this drawing...