Hello,

1. Header > Appearance > Heade text color http://prntscr.com/jz1pc8 Make sure no custom CSS has been applied.

2. Header > Logo > upload yours

3. Appearance > Menu > enter the menu item > find Description field and remove HTML block http://prntscr.com/jz1r54 or enter the HTML block and edit this list as per your needs.

4. Cart icon – do you want to hide icon or shipping cart from the header?

Best Regards