Had a few bricks come out from the window opening and have kept them aside for any repairs. A good weekend job. Need to replace these two bricks. This looks like where the old waste pipe was for the bath. Bricks removed using drill and recip saw with brick blade. A length of galvanized pipe was pulled out from behind the bricks which would have been the waste for the bath. First brick being placed in. Sprayed water on surrounding bricks to dampen down. Used level to make sure brick in flush and plum with wall. Second brick replaced, had to be trimmed down to fit using bolster. All pointed using jointing tool and brushed when firm to remove edges.
I always use duck tape and mask all the surrounding bricks and the new ones with tape. Fit and point up then remove all the tape and finish off. However you've done a brilliant job without taping up so hats off..
Mortar has dried out now, and colour is more matching, always hard to get colour consistency. Going to go over with light acid wash. Bricks are dragface and hard to keep faces clean.
I was going to say that there was something unacceptable (to your standards) in the 1st, 3rd, 4th & 5th pictures, however you appear to have resolved it in the 6th. And I hope the green/yellow is hosepipe and not 25mm earth!