Pixeden works :

Wall Art Mockup

Advertising Stand Mockup

New iPhone XS Max Mockup

iPad in Hand Mockup

Responsive Devices Showcase Mockup

Apple Devices Mockups

Z-Fold Brochure Mockup

Brochure Mockups

Minimal Browser Mockup

Browsers Mockups

New Vector iPad Pro Mockup

Typical Postcard Mockup