creating objects in a different class

Hi, i have just gotten some feedback from handing in a project, my professors says that i have made some errors. I have corrected them but was wondering if anybody could just look through it and see if the comments in agreeing with the changes? https://discord.com/channels/143867839282020352/1181094353683365958/1181094353683365958 here is the code and will post the feedback underneath