Template for sketching mobile UIs

Based on the iPhone 6 mockup by Panagiotis Efthymiou, I created this printable template for rapid sketching and ideation. The iPhone 6S is rendered at real size, with extra space for annotations.

Sharing back with dribbblers and the design community :)
Grab the PDF here.

I'd like to keep this minimal, but suggestions for improvements are welcome :)