This is a great Desktop PC mockup because it allows you to display different types of apps and websites within a great in-use context. This is a very useful scenario, it features a young woman using her Desktop PC to complete a research paper due next week, the lightning in the image is bright and clear and the main focus is the computer's screen, in which you can place your new website or app. All you need to do is drag a screenshot of your website straight into the monitor's screen, or you can just type the site's URL above and it will automatically convert into a screenshot. The end result will be a great image providing an insight on your webapp, you will be able to share this with coworkers, partners and most importantly, your potential users. Try it out now!