I took a look at your listing and might be able to suggest a few things. One thing I often heard is “Last year, my listing”, “before 2020, my listing”, “I used to get multiple applications, etc.” I think it is crucial to understand that the world of traveling has changed: it’s gone through a lot in the past 3 years, costs of travel are rising, and people are perhaps more careful when applying to sits. A few of us had our plans changed, due to unforeseen circumstances (cancelled flights, cancelled listings, cancelled sits at the last minute, etc., we lost a lot of money, on hotels, last minute flights, etc. ( so pet sitters might think twice before applying. July is a expensive month to travel, so you might want to appeal to someone who is located in Germany already? Maybe a new sitter who would like to start their pet sitting journey and get a first review? Maybe add German to the listing (I have seen this in France and Spain, where the 2 languages were used, so that it would appeal to more local sitters as it showed there were no language barriers). But because it is harder to travel, listings need to be “competitive” in order to really appeal to a lot of people.
Each sitter is different, keep that in mind, but I would suggest simply adding pictures. If the picture quality or quantity topic it has been mentioned multiple times, it is because it is overlooked most times. A clear picture of a space where the sitter will sleep is missing (the bedroom is so important! We love to see the size of the bed for taller people, or simply where we will be spending our nights), especially as your listing says “single bed” which wouldn’t appeal to a couple, but maybe friends? a family? how many single beds are they? can we see the size of them? a good picture(s) of the bedding situation is really appreciated and goes a long way.
I LOVE that you have a real espresso machine, it is a rare occurrence on sits, and I would definitely take a picture of just that machine, to show coffee lovers like myself that there is a way to make a gorgeous barista style coffee in the morning, without trekking far.
People who like to cook like myself would love to know what you have on hand, so more pics of the kitchen appliances might be of use (different angles of the kitchen). I say that because in more rural locations, we might not feel like cycling 5km to go to the restaurant often, so knowing that everything is on the premise might help.
The bathroom picture shows that you do have a bathtub and a shower, but isn’t super clear, so maybe more pictures from different angles might help, of the toilet and sink perhaps?
I have seen listings that had very little pictures, but were in “popular” locations, such as London, Paris, New York, etc. but when there is a need for a car, or a bicycle, and when it is a little trickier to reach, then sometimes the listing needs a few more selling points, and the more pictures you put on your listing, the better.
Also, that might be just me, but the “Apart from keeping the house clean” mention could be deleted. Our role as sitters is to keep pets happy, healthy and take care of the house, so I would just start with " it might be necessary to water the garden plants, depending on the weather".
I would focus on adding pictures, perhaps adding German, and maybe as uk_american mentioned, adding an explanation regarding your mom: we allll had at least once, had a parent, or a friend who HAD to get car keys or forgot something and had to visit while we were pet sitting, and even though that’s against the terms and conditions, as no third party should be present, we like to know that we will not be surprised visited or that the family members living close won’t be visiting. If they are, then simply mention it.
I hope this helps, you’ve already had a good few suggestions to help boost your listing, and I hope you find the best sitter!