A picture on a rental website has a specific purpose: it's selling your dream. At best, it makes the viewer want to drop everything and come to you immediately. Pictures make people want to experience your property but it's the combination of quality, cost, location, availability and other related factors that will decide if they eventually book with you.the more people say 'bad' then I'll know where to try and improve.
You don't need others to tell you if your pictures are 'good' or 'bad', it's your property and your website and you know what you're trying to achieve. Each shot should be carefully chosen to clearly illustrate an aspect of your property and/or location. Ask yourself if it's doing the best possible job for you in that context. If you decide that it's not, then re-shoot it or pull it. Better a dozen great shots than a mish-mash where the weaker pictures dilute the intensity of the best ones.
Most people carefully write, re-write and endlessly polish their text until it's perfect but some are careless about their choice of pictures. But it's the quality of your photographs that will decide if somebody surfing through a hundred holiday websites stops long enough to read your text. If they don't stop, they don't book.
Jim