Hi! I would like to introduce my favorite minimalistic black&white mock up bundle! Here you can find postcard mock ups (A6), notebook mock ups (A5), poster&blank mock ups (A4), business card mock ups. All previews you can see above. There are great for minimalistic portfolio presentation. Only first time there are extremely low price - 10$!

https://creativemarket.com/Marie.Smth/1010882-Bundle%21-20-Minimalistic-BW-Mock-Ups