I started adding layers of color & ink (black, blue and red), letting each one to dry. Also I used water in between, and on top of everything I used hairspray. When all was done I used scotch tape to take off some color and layers, so as a result I got some letters shed less or more, leaving my fingerprints and dirt from coloring.
So when coloring&drying process was done, font looked like this
In the end, it looks like this!