Some really nice shots here, I too love London and Bristol for photography, they are such a contrast too.
Here are a few of my shots from Bristol when I went to visit using f/8 to achieve maximum sharpness when using the Canon 18-55mm. I love the waterfront in that city so beautiful in the summer months. I have used photoshop slightly in this photo to sharpen it up around the edges, with new software
I purchased form here as old software was out of date, trila that was.