In many ways I prefer the b & w but there is a wire, possibly a telephone wire which runs from the right hand church wall and under the lower tree branches. It hardly notices with the colour version but is rather distracting in b& w. How difficult to clone it out?
Greyscale version is looking a bit over-sharpened to me; would be interesting to see if a slight gaussean blur over it improved it at all?
PS: Wasn't St Swithens the name of the hospital in that Doctor's series many years ago (Can't quite remember the name - was it "Doctors at Large"?)