you know the passcode thing, I used picsart, and what you do is this: you screen shot your lock thing, then open into picsart and you set that as the background, then you chose 10 images from your camera roll, then you shape all of them into circles and then put the opacity low and then put them on top of the numbers, then it is finished

sorry if it is not very clear how to do it, I just tried my best to explain