Considering what a big step it is to brand your stationery or, to put it in other words, take a leap into a more professional business, you better think twice before getting any design approved to avoid any rather small mistakes, regarding the fact that whatever design you decide is going to stick around for god knows how long.
Now, out of the many possible items for branding, this very vertical poster mockup puts your focus on a paper sheet. You can check out your branding design on a paper standing straight with a gamepad almost vertically hovering next to it just to enhance the view, both of which are fully editable.
