You can use this Outdoor iPhone 6s Plus Mockup to showcase your UI Design on iPhone 6s Plus to your clients in a simple and sleek way. You just need to put your design in the smart layer and it is done. You can modify the background colour according to your requirements. You need to have photoshop to edit it.
File Format: PSD
Dimensions: 3000×2000 px
Size: 28.2 Mb
License: Free for personal & commercial use