Most of the teams did a thorough job in your strategy and implementation discussions. 

I didn't see any comments about code style, i.e., PEP-8. The review portions should comment on that as well as any notable features (good or bad, clever or awkward) in the code. The review portions should include specific comments about the actual code. Indicate a line of code and then provide a comment about it.

The testing portion should be a discussion of what test cases are needed to cover the range of situations the code is intended to deal with.