A detailed Lidar map of England and Wales

Nice Work! Are you hosting the WMS yourself? I'm hosting one for my region of germany in 0,25m resolution and it's about 100gb already. Whole of UK must be a pretty massive TIF.

I am working on a site for downloading and using high-res lidar data internationally. Maybe check it out if you're interested: https://hillsha.de/

Detailed down to the level of individual trees and houses. You can even see ridges near my house that might be from ridge and furrow agriculture:

https://en.wikipedia.org/wiki/Ridge_and_furrow