New free & premium photoshop smart object showcase artwork mockups for designers to present their designs; brochures, magazines, books

I think you might also be interested in this awesome collection of free Poster & frame mock-ups & templates.

This hand-made collection includes more than 60 high-quality,  fully editable, print-ready mock-ups for graphic designers to showcase their posters, flyers, pictures, and artworks in a realistic style.

All these Poster and Frame mockups are available in layered PSD format so that you can simply add your creativity via smart objects in Photoshop.