You can store your downloads in your account when you signup!
On this great mockup a woman is checking her iPhone 6. She is standing in front of a large elegent christmas tree. In front of her is a pot of gorgeous of tall red flowers. She is holding up the iPhone 6 mockup in front of her. The iPhone 6 mockups holds an image of 750x1334px. This is the perfect place to show off your holiday sales.
Drag & drop not supported, but you can still upload via this input field: