Hello,
I have read your job description and fully understand that the sales of your app 360Bali have recently been slow and you wanted to inquire into why that might be the case. I saw that your app was launched in June. June is peak season for tourism and since bali offers a lot of tourist destinations as you app highlights it is easier for you to get downloaded since more people are searching for places like bali, Indonesia. Also when you launch your app, apple generally promotes the app to its user on the second and third day. This is when the wave starts, it is then up to the publisher to take steps to keep riding that wave. As you may know for a website to be featured in the initial results SEO needs to be done for different regions, similarly in the app store there are a number of things that can be done to ensure that people see your app and you are the one of the first search results they see. Even then it is not a sure thing. Having said that I can help to educate you and carry out the AppStore Optimization(ASO) for you. The design of your app is indeed inconsistent with the app design guidelines and screenshots play a huge role among other things. I can definitely help you with this and also teach you the tricks of the trade.
I have 3+ years of experience in mobile app design and have worked for multi-million dollar companies like Agnitus. Hence I know the ins and outs of mobile app design till the launch of the app and know all the problems your app could face.