Read more about 20 tips for faster and cleaner mockups at CreativeBloq.com
It takes years of practice to nail down a reliable mockup design process. Even professional designers often change up their strategies to attempt new concepts and creative ideas. As explained in The Guide to Mockups, design is a never-ending process of ingenuity and improvisation. The more strategies you learn, the more opportunities you have for new avenues of expression.
Source: Creative Blog