I'd suggest having large swaths of farmland if you can manage it.
Behold, the green fields of England:
Furthermore, might want to change the forests a bit:
I tried doing that on a previous map, but it was a huge hassle because of all the angles in roads and farms.
I'm mostly trying to replicate woodland wilderness instead of presettled farmland and countryside.
Sometime I hope to replace the shorter trees with taller ones (Or possibly redo the forests altogether)