Painting on Unprimed (Raw) Canvas

This is what I painted in painting class last week. The instructor provided us with some raw canvas to paint on, as inspired by the famous painter Helen Frankenthaler. Thin watery paint bleeds into the canvas while thicker applications remain on the surface. At one point she asked me what it was that I was painting, and my response was "some kind of sunset thing". I actually turned it upside down to add darker colors to the "ground", and when flipped upright, the canyon kind of miraculously appeared. Since the canvas is unstretched, I could have it stretched onto some stretcher bars, but I think I will likely do is get the old sewing machine out at some point and make a wall hanging out of it. Really happy with this painting.