It’s really not the best time to shoot, when the sun is high up and there are no clouds in the sky. But if that is the only time you are in a particular city, one tries to get the best shot possible.
Same when I was in Regensburg, Germany. I only had around 2-3 hours and it was just around 3-4pm. So really not the best time. Would loved to be there for sunset, but no such luck that time. If I did the same shot today, I would probably try to use the ND400 to blur the water completely and so create a nice reflection. Maybe next time :)
This photo is a manual blend of 6 shots. Edited only in Photoshop. I try to blend the images so, where the darkest parts are still the darkest, and the lightest are still the lightest in the final result. I think it gives the final photo a more natural look.