I think you need more kitchen and bathroom pictures. Also as you are unproven (no reviews) you need to be 5-10% cheaper than similar properties to encourage people to risk staying with you.
To me the place looks a little stark and empty/uncomfortable but other properties might be similar.
Of course it may be that it's the middle of Winter and perhaps your place is better suited to the Summer.
Have you rechecked all the possible amenities now that your listing is published?