Can I draw cliffs using MS Paint?
If you have access to Microsoft Paint, or a different version (I have Pinta) then why not follow this tutorial to create a cliff? I had a go.. but I am sure yours will be much better! (My efforts are hidden right at the bottom of the page!!) There are also online painting tools (you could take a picture of your finished result and then upload the photo to Seesaw). Websites include https://kleki.com/