Green screen - after effects

Before beginning we changed the settings to...

We then imported the files with the green screen photographs into after effects, then we placed them into a composition. I then clicked all the images and transformed them all to fit to the composition.

Afterwards, I changed the image settings to 1920/1080.

 soon after I manually decreased the size of each image frame and made a diagonal pattern going downwards.

 I made a new composition, and then I placed composition 1 into this new one, I then placed an image under the composition, then in the effects settings I clicked on keying where I clicked on key light.
This helped to dissolve the image into the short animated video.