I'd try lower angles too... personally I like about 5 degrees difference between front and rear so I run 45/40 on a board with a 23cm waist and I'd probably go about 40/35 on a Tanker (25cm waist IIRC?).
It looks like you're swinging your front arm quite a bit, especially as you enter toeside turns. I like to keep my arms (& body, for that matter) as quiet as possible.
But mostly it looks to me like you're doing fine.
"Here's an idea to make the board better - lock and delete threads that turn into pissing matches."