Pretty breezeway - more than just a walkway - it is its own outdoor area. You could do something in that area that is different from the rest of the yard (like the gravel patios that I like but can't find a place to use). like the white lattice work
This wold be lovely between the house and detached garage. yes, very lovely and I love the brick path.
Walkway to Guest house. Wood or maybe concrete with brick trim. Replace columns with beams.