Minor - Artist's Hands Progress

I've started work on the artist's arms and hands. I'm modeling the arms too as I want the hand movements to look more natural, compared to what they might look like if I just modelled the hands and part of the wrists. I didn't draw a side view as I thought I wouldn't need it, but I may draw one soon as I'm struggling a little bit without it.

Artist's Arm Orthograph

I've started to model the hands but I'm already a little stuck. I've been watching the Jet Pack Jones hand tutorials to help me but as my hand designs are a little different to the ones for jpj I'm running into a few issues. I've got a lot of pinching and star-shaped edges (if that makes sense) in my geometry and I'm not sure how to deal with them.

I roughly added the arm to the hand to see what the whole arm would look like, and I'm probably going to redo the arm as it doesn't fit with the hand properly. The vertices don't line up well at all which is causing an unnatural twist in the wrist, making it look weird and lumpy. I'll have to model it again using the right dimensions so I don't have to mess about with adding more edges to the hand geometry to make it fit onto the wrist.

I've got a lot to do in terms of adding more character to the hands and making them look more like my drawings, but I'm not sure what to do right now as I really want to fix all the pinching happening in the geometry before I start adding more detail.