PHOTO I and II Students:

Follow along with the following video: https://youtu.be/E2kMCYEvthE

More than just watching it, you should follow along with the video and create a (similar) image by the end.  Save it as a PSD (photoshop) file so I can check that you used layers correctly.

Additional Help can be found in the following guide:

https://www.photopea.com/learn/ 

This has detailed breakdowns of all features in the Photopea software.