In the top pic that 11ft point that sticks out into 40ft of water gives me a fish boner. Set up on top of that about an hour before sunset and fish jigging raps and spoons until it gets dark for walleye. Anywhere there is variation is a good starting point, areas where you can try different depths like humps and points.
That hump in the middle of the channel in the second pic with the canyon running next to it looks pretty tasty as well.