Vintage Mock-Up Freebie made available by Dustin Lee, this is an free addition of his master piece which you can find here
File Size: 52MB
Resolution: 3000 x 2000
Branding Identity Mock-Ups and Templates made available by Vitaly Stepanenko, this is just a a small piece of his awesome work, you can see the entire package here
File Size: 70MB
Resolution: 4000 x 2950