Digital color on pen sketch with a mobile app

Hello everyone, i am here to share a new sketch thats been colored digitally. I have a tablet and i used clip studio paint or photoshop to do this kind of drawing, normally but when i was coloring this which is a few days ago, i was a bit sick and so couldn't sit in with the desktop, but i also wanted to draw.
so i downloaded this android software, called sketchbook and tried to color this drawing.
It was a bit hard with that huge rubber pen thing to draw on phone but i like the result.

Here are some process shots:

Reference image used for this drawing.