Knight Sketches to Dave Rapoza's Live Streams

I've been learning a lot from Dave Rapoza's livestreams, I like to paint along to them to pick apart his style.  Though these are pretty shitty renditions, I feel I've been growing a lot from each one.  

You can definitely tell which was the first progressing to the latest.   

Sketching the forms directly and literally rubbing the painting into life is such an alien concept to my normal way of drawing but it's such a fun frustrating struggle to build that ability.  It's really pointed out my weaknesses and I think Ive been growing the fastest though these types of studies and style.