You are welcome to use them and modify/improve them to your liking, happy to help.
I am about to begin U5 L03. I have modified the activity sheet to a self-assessment and have created a google form for my students to make it easier to give and process feedback. Unfortunately, you cannot see it if I want to automatically get the students' email, but it looks like the rubric included in the activity sheet plus a drop-down menu with the name of the student being assessed.
While I was writing this I realized I could make a public copy of the form for everybody to use. It is included now in the folder as "Public copy of U5L03 Building a multi-screen app Peer Evaluation".
This is the link:
I am planning to use flubaroo and doctopus but the form is plan B.