Nice portrait! Very imaginative. I am not much into mixed media in my own work, though I suppose one could use the term for watercolor or colored pencil combined with line work in pen.
A recent sketch:
You got that right: winter is coming. I made all manner of errors, couldn't work out how to fix them without introducing new ones, and eventually did not so much complete the sketch as give up on it.
A few of my drawing pupils had better luck. I had them draw a portrait of Mandela, and some actually managed:
(Looks a bit like Sidney Poitier, who once played the role of Mandela!)
These ones are pretty good, or at least not bad for grade 7 kids. I sure couldn't draw like this in grade 7: