I think it's beautiful and very romantic however, it's got issues on the pics that have been pointed out above. It's a listed building so roof maintenance or replacement will cost tens of thousands because having worked with local councils in the Nottinghamshire area on listed buildings they are very strict! Materials are costly, skillset in the area you are looking is good but expensive.
Windows etc would be difficult, you would need to look into good secondary glazing which is again not cheap.
You have lots of trees surrounding it which may or may not have preservation orders on them, you would need a fairly heafty reserve of cash to spend on it!