Thanks for your kind words. The mound is artificial, to give people an opportunity to watch over the area, which will be enhanced partly for meadow birds, and partly for more rough herbal vegetations. Mound is a SSS, with a masked strata shader for the stairs. Ditches and wider streams are masked from a satelitte image, and changed as needed, reeds masked by height minus presence of watermask. Most watery vegetation is procedural plus some pops.
I may replace the shrubbery though, not entirely super.
Updated (they continue to ask for changes).