The deck is looking great. Here's something you might want to consider when choosing your deck/porch railing. Your best view on the north side will be looking downward toward the creek. You will have to look through the railing to see the creek. Thus, the least conspicuous railing you can construct will provide you the best view of your creek.
We moved into our house one year ago. We haven't finished our back porch/deck and railing yet. One thing we have noticed is how much we enjoy the view of our woods from our kitchen table. That has made us reconsider our railing materials because any railing will significantly obstruct our view out the back of our house and porch. We were going to do pressure treated vertical rails. But now we are considering iron railing or even plexiglass to give us the most unobstructed view of our woods.
Obed