I have made some small, medium and large photoshop mockups for you. They are formatted for Instagram posts and stories but can be used for other applications as well.
Mockup 727 KB 288px x 288px DOWNLOAD
This is a very small file 4in x 4in – as a test
Mockup 9.81 MB 1028px x 1028px DOWNLOAD
Mockup, 97.2 MB 2712px X 2712px DOWNLOAD
Mockup 18.3 MB 1080px X 1920px DOWNLOAD
Unlock the gradient map to adjust the light and shadows. Here you can add color to the shadows to suit your design.
Use Transform > Warp on the smart object layers to give your design perspective
Use Filters to add noise, blur (I like Guassian Blur at 0.5 %), and otherwise rough up your design)
Flatten your image and then use the blending tool to lightly blend the edges of your design into the photo.
Need a more in-depth tutorial, there are some wonderful classes on Skillshare
You are allowed to use these surface designer resources for any personal and commercial projects for social media, websites, or printed materials. You may modify resources according to your needs. No attribution or link to this site is required, but any credit will be appreciated.
You do not have the right to sell, sublicense or redistribute these files.
The photographs are sourced from UnSplash. Here is their licensing agreement.