This is a very common question and concern of beginners. They want motivation to take further steps. For this purpose, try to research and find out the current places where you can see the high-quality designs. Some online portals are shared by the mobile application development services like Pinterest, Dribble, Mural, Behance, Evernote, Raindrop, etc. A number of designs are there which can easily give you ideas about how to create and develop your application. However, Google is also good in that aspect. It brings those things which are highly ranked and optimized. Taking guidance from it is becoming a requirement of the current world. It will surely help you out.