Sketch versus digital art - Satori Azuka

Next page of my sketchbook features Satori Azuka - probably my favourite class member. She was the first character I've ever designed for hentai drawings only. I drew a random character and my boyfriend told me to draw more arts with her and make her my OC - so did I.

The sketch in the down-right corner came out pretty well, so I decided to convert it to a digital drawing :3