This tutorial is easy and cute!

Apps needed:

-superimpose
-phonto

The first thing you need I do is open any color background you want in superimpose. Make sure the constraint size is 2:3!

Open the image below and follow the instructions to remove the unwanted background.

Image you are going to add:

Instructions:

(They are in number order)

Next move the image around and merge. In the end it should look like this.

Image:

Add your png and erase anything under lines. It doesn't have to be perfect. It should looks like this.

Image:

(It will be a messier line, but the next step will help make the line look seamless)

Now you need to open the same want line image from awhile ago and repeat the same steps so the black background is gone. Move the image around until it matches with the first set of lines. This should help make your messy line disappear. Merge. (This should end up looking like the image above)

End result:

Save to camera rolls and open in phonto. Add your title and whatever else you want, save to camera roll.

Like I said this tutorial is easy if you follow the instructions. Hope you guys like it!