Well, it's a lovely subject with a lot of potential. But you could have done with a much more interesting sky, and light which was not so harsh and unforgiving. Like the old saying goes, if I wanted to get to there (a great picture), I wouldn't start from here.
If you live reasonably close to Preston Mill, I would haunt the place. Keep going back, at different times of day, different seasons, different weather. Get a feel for when something magic is going to happen, and then be there for it.
John