Carving progression! Drop some carving knowledge here!

A bit of a longer post this one. @wild-cherry 

Riding the JJ SPW 159! This board tired me out as this was my first carving board. Pretty heavy but I love riding it. 

In my last advice needed post, I think the advice given was spot on because I notice it here in my riding. I definitely need to push my hips more forward and it seems like I have to much space between my left chest and my right knee on heel side which is why my heel sides look like how it does. Is this true? 

I do notice this is a pretty flat area too so i'm assuming speed is a factor in getting lower in my carves? 

In this second video. This was after I worked on the J turns which I actually made it across to the other side of the mountain (heel side) without falling but when it comes down to linking turns, I do something completely different as seen below. I noticed when I did my J turn and made it over, my left chest was to my right knee and I was reaching for the edge facing the board but it did require a lot of twisting. 

Would me changing my back foot angle help? my hip mobility to twist on heel side isnt that great. right now my angles are 30 front 15 back and 55 cm stance width. My logic is that if I say do 30-18 or 30-21. it will actually help me keep my hip facing the nose and I would be able to introduce the fore-aft motion and finally carve a little lower?