Here is a few ideas to get started:

Supports: Yes - overhangs like ears requires supports. I have mine set to Automatic Organic Tree supports with a Threshold angle of 25. Worked just fineColors: paint in slicerOrientation: Printing the single-file-versions - just as they come. But if printing the pieces seperatly, you need to rotate them to optimal position (and even lowering some a bit ‘below’ the printbed. This is done for you in the Bambu Studio project files!Happy printing!