All great suggestions. However my friend has absolutely refused to come with me, as she is not a fan of our neighbours either. She knows it’s going to cause more trouble with them and she believes in Karma :0)
We think a trellis to grow something, with maybe a backing (mirrored would be great) until the plant gets bushy and fills the trellis.
It’s a sad situation because I’ve been brought up to watch out for neighbours, make sure we don’t upset them or cause them to not enjoy living next to or near us. This lot are not kind, charitable, caring or considerate.