I'm a relatively novice gardener. We have a London property we've recently moved into with a West facing garden we plan to do up. (Future plans include building a wood fence in the back, and creating an area of turf.) We have a primary school located behind our garden. We have two very large trees but they've grown to a height they don't really screen much. I would love to add a little more privacy with another tree or two I'm just not sure what to plant. I worry that a lot of evergreens end up being very thick and blocking out too much light. I liked the look of chanticleer(pyrus calleryana) but read that it can be quite smelly? Maybe hornbeam? And would it be an issue planting it next to the big trees already there. Attaching a photo and appreciate any advice or suggestions. (We'd be removing the bamboo and some of the other brush currently there).