PNG, PSD | 130 MB

https://creativemarket.com/LumberCraft/665978-Leaf-Scene-Creator-Showcase

• Presenting First ever Leaf Scene Creator for your products, Business Promotion and Showcasing your artwork and almost anything. This pack contains 30 High Resolution PNG Transparent Images for creating an outstanding display of your work.

PSD, TIFF | 40 MB

https://creativemarket.com/dennysmockups/664010-Jam-Jar-Mockup

• High quality and realistic mockup. With this files can create personalized product with custom design. Mockup works only with Photoshop (.PSD files). Files are really easy to use. Guide file is always included.

https://yellowimages.com/stock/square-pet-water-bottle-mockup-shrink-sleeve-labeling

• The Square PET Water Bottle Mockup with Shrink Sleeve Labeling is the perfect PSD Mockup for showcasing your beverage and packaging designs. Made from clear plastic, this exclusive bottle is perfect for carbonated drinks, cold tea, soda, or water. It comes with a screw cap and a shrink sleeve label, a perfect opportunity for you to showcase your label design. This square bottle mockup is ideal for those who want to create a unique packaging design that stands out on the shelves. The cold drink industry is so competitive today, and this mockup is an excellent way to showcase your product design effectively.
• Display your design in a more efficient way on this Square Clear PET Water Bottle. Easy to recolor parts separately. Includes a special layer for your design (available only in PSD file).

https://yellowimages.com/stock/glass-strawberry-jam-jar-mockup-front-view-13907

• The Glass Strawberry Jam Jar Mockup is an exclusive mockup that offers a stunning front view of the glass jar that is perfect for showcasing your berry, strawberry jam or canned food products in a visually appealing way. The package comes with smart layers and smart objects that allow you to easily customize the label and container design. The mock-up features a screw cap that helps to preserve the freshness and flavor of your desserts without any leakage. Its layered PSD file ensures that you can easily adjust the design according to your requirements. The Glass Strawberry Jam Jar Mockup is the perfect choice for food mockups, packaging and promotional materials.
• Apply your amazing design on this mockup of a glass strawberry jam jar in a front view. Outstanding quality. Fairly simple to use. Contains special layers and smart objects for your artwork.

• High-quality posters mockup with adjustable layers to use in your design portfolio and presentations.
• Our mockups are designed to showcase your artwork in the most realistic way possible, with our focus on minimal, natural environments, we want the viewer to believe your artwork is actually there.

https://creatsy.com/1891899733-fast-food-burger-paper-bag-exchange-mockup

• file works in Photoshop (min. version CC2020) and in free online editor: photopea.com;
• pack includes 1 .psd file: 6000x4000 px, 300dpi;
• check screenshots for all the features;
• well organized layers.