In the Middle

My teacher always asks "where are you with this painting, beginning, middle or end?" I started this today in my studio and I'm definitely in the middle. I've covered all of the canvas so I'm no longer in the beginning. I'm nowhere near finished so I'm not at the end. I'm in the middle and don't exactly know what this will look like when it's finished. It's a painting of the Whatcom Falls Bridge in Bellingham.