You have 13 reviews, @Ivan286 and almost all of them are very positive. You have a couple of reviews that point out problems with the space which you acknowledge in your response. Your responses to the negative reviews were respectful of the guests and that is important for potential guests. You don't need to waste your time trying to get a review removed. I don't see where the guest violated the Air BNB Content Policy and your response was professionnal.
The leaky toilet has been mentioned a couple of times, so you should fix that.
I do suggest that you have captions with your pictures that describe what is being seen and add more interior shots of amenities. Potential guests look at price and pictures first.