Use cell phone images or images from the Internet and create an image of nature returning back to its original state. They could either:
A link to Photoshop resources that have been used at LDH - https://sites.google.com/a/ocdsb.ca/tgj-photoshop/learning-the-tools
Photopea
getting started https://www.youtube.com/watch?v=4pfdGEnFtUU
select and mask https://www.youtube.com/watch?v=m27buqJMSko
spot healing brush (remove an element) https://www.youtube.com/watch?v=7dA9xbHaGxs
add a lighting effect (blending modes) https://www.youtube.com/watch?v=ynOm-FmN-8Y
double exposure https://www.youtube.com/watch?v=wuPc0Ay1rAo
changing hair colour with colour fill https://www.youtube.com/watch?v=4h6IVu52w3A
changing eye colour using s colour fill https://www.youtube.com/watch?v=PjUmq6OhxIY
Changing colour with Hue https://www.youtube.com/watch?v=2xVy3BBiZ_E
gold text using gradient https://www.youtube.com/watch?v=uOfazBygtXQ
speedArt of a project