Having been through the fens and on the road from Kings Lynn to Spalding I have wondered the same thing.
You have to accept that sort of landscape so go with it. This is wide angle lens territory. You need to find something that you can have as prominent in the foreground. You also need a good sky. You will probably have to wait until you can put the two together.
Keep looking at pictures in the Lanscape Gallery for technique.
Look at this and forget the hills in the background. Imagine they don't exist. What you have is foreground that you can make dominate the flat landscape by shooting from low down. Add an interesting sky and you are there. You will probably need to log these good spots and revisit when there is the posibility of a good sky. ( watch weather forecasts ). If it snows tonight and tomorrow as forecast you are in with a good chance.
http://www.worldphotographyforum.com...hoto=255&cat=2
I will remember your thread and post links if I come across images that may give you ideas.
Don