Welcome aboard.
There are some very knowledgeable people on this board that will be able to give you some good advice. (I'm not one of them)
From a beauty stand point, based on what you have described, I would look at a fountain in the pond.
This would add oxygen and it would look great in your front yard.
I also think that you should buy some minnows and worms and get a feel for what is currently in the pond. Then the experts can give you some options on what to do from here.