What you need:

(If you want more background options, then Google 'granite tumblr')

Open one of the granite backgrounds and add the polaroid. Add the picture you want in the polaroid and press Screen. 

This step is completely optional, but I thought this looks cool.

Tap Effects and find a black and white filter. DO NOT press the check mark. Find the circle next to the paint brush at the top of the app. Tap it and play with the settings. Once you're done, press the check mark and save your edit.

FONT I USED;

There was a and growing from a black hole - will & grace

Garden - Code Bold

In my mind - Saint Andrews Queen

Author - Bebasneue