When you said not much response, was there any interest and was there any feedback? If there was feedback, was price mentioned. If not, then it must be just that it's a quiet market. Is a month a long time in that market?
I don't think there's anything really majorly wrong with the advertisement and where you are going to change it and get instant enquiries. Getting better angles in the pictures may add something however.
I like the idea of professionally staging the house (furniture etc.) as a general rule, as it works in the bigger city markets. In that market, I am really unsure. Really difficult to give any definitive answer as far removed from city and big regionals that I follow. It must be something else IMO.