@isagalaev
Yes, my style really "parasites" the pure observation, that's why I study this. I need to practice outside of my comfort zone more, that's where I learn a lot. ?
The exercise here is really hard; I paint the faces, not after a photo but always in another view angle and light (to do a sort of 'license laundry' and make my art not a derivation of the photo, then able to be CC-By-Sa for Wikipedia). The sources are a bunch of low res photos from the press, or videos.