I'm not an expert in photography but I think there is very interesting composition. It'd be even better if the sky had more interesting details or features in it to create a more dramatic effect. If the main subject is the sky, maybe the buildings could be more silhouetted or darker? I'm not sure... It would also be better if the power lines lead the viewer's eye towards something interesting. That way they can add a bit of perspective and depth. Right now I think they're a tiny bit distracting... Hope this advice helps!