Free iMac on Wooden Desk Mockup
Laura Jane from Behance created a simple yet true to life Free iMac on Wooden Desk Mockup wherein you can drag and drop smart objects into the PSD.
You can design from scratch and try to incorporate elements into the iMac. But what I can really suggest is that create a design already and make sure that it’s catchy and short, then you can add it as a smart object into the mockup. People would also love to see how amazing your software or application.
The main factor that you should give time to think is your branding, make sure that it can recognizable with just a glance. Customers will never forget your brand if you launch a design and color scheme that will appeal to them in a striking way.
Nobody wants to waste their time figuring out what you sell, be straight to the point and show your website/software design naturally.