Brandi,
Something that I'm doing in my ponds is adding more structure. With the water level so low, I'm seeing where the catfish have build nests under the logs and stumps that I had in there. I'm also seeing that when I go down to the water, close to those log piles, that the fish will take off from there. The waves and sometimes splashing is very impressive.
I'm adding more trees to the bottom of my ponds. From what I see in your pics, your pond looks pretty clean except for the cinder blocks. Have you considered putting a couple of trees in it? I'm not using any pines, but I've always been told that Christmas trees are great for this. I'm using my hardwoods that I take out. Oak, sweetgum and all the others that I have. Everything from one inch thick trees to about ten inches or so. Basically whatever I can pick up with my grapple and get down into the bottom of the pond without getting stuck!!! LOL
Eddie