No, there won't be a ridge. There's a toe band that goes around the toes, and it has selvedge sts along each edge. The instep and the sole are attached to the toe band by picking up sts, so that's a smooth way of joining. Where you see what could be a ridge on the end of the toe, that's just the toe band curling under a little because it's stockinette.
Thanks, glad you like the colors. I dyed the blue as a gradient, so the color is going to get lighter as I go up the sock toward the cuff. I'm really having fun with this project. And I love working with recycled yarn. The cost of materials for these socks is about $1.70.