Old grist mills just have this nostalgic charm to them. Love that this redux has stonework and wood for lots of interesting textures. The biggest thing that is missing here is the flow of water - which unfortunately is something out of your control. But I do have one suggestion that could have taken attention away from that fact. Taking the shot at a lower angle framing it were the bottom of the composition is just under the base of the stonework. It would give the mill a look of being taller & grand and also showcase the background scenery of the trees and some lovely lightplay in the leaves that I see going on there. By having the tall trees step into the spotlight as a supporting element it could call attention away from the element of no flowing water. One last small observation that would make this picture of the Old Mill even more appealing is that you can remove the modern power lines from the picture as that it ruins a bit of the rustic charm.