ohh these are great, very clean
I really like the way you double down on the line weight on certain areas of the figures, it works very well!
And thanks for the insight, i have noticed various great artists make their curves using their fingers and others their shoulders. I personally always prop the surface up for my main lines and use the shoulder but can work flat if detailing/hatching/rendering and I like analyzing that stuff and experimenting ๐
Cheers!