Is my electrical wiring for the refrigerator correct?
Looks fine, provided it doesn't reflect the physical route of the wires. 
Looks fine. 
Those words aren't the right words, but you have the gist. I would say "branched" and "daisy chained". 
The toaster receptacle needs GFCI protection.  The fridge should avoid GFCI. 


The electrical code doesn't care about whether your fridge is on GFCI, but it ought to, because food poisoning is just as deadly as electric shocks.  Fridges do not benefit from GFCI  protection if they're grounded.