Hand drawing critique!

Hey there! I've been using the resources on this website for many years now, but I continue to have an issue with hands... I always feel like my drawings of fingers look too... sausagy? Like their form isn't defined enough. I tried drawing them in segments before but that always ends up looking stiff. I've attached some one minute studies I did as reference.

I often avoid showing hands in detail because they are so complicated!  Your fingers (in some drawings) are a little short and do not imply the joints underneath.  But overall you really have a feeling for hands - their gestures and angles.