I spent most of my time focusing on eyes and faces, because that is what I plan to use the most when doing freehands on Warhammer models.

Here is some of my pratice:

I did some work on bodies and structure:

 

And finally I put the structure knowledge to use by drawing Anya from Spy X Family, using the cover of the sexond manga as thw reference. Other than the eyes being slightly wonky, it is a big improvement over my previous attempts to freehand these kins of characters.