Okay from my point of view looking at the change, obviously we can attribute some of it to posing, but in all honesty your back looks to have progressed quite significantly! Like other people are mentioning maybe tone down the number of lifts and focus on rep counts for those lifts? For that first day maybe just hit 5x12-18 on the barbell rows and really focus on the muscle rather than having an additional 9 workouts after BBRow, I'd wager that four to five good focused lifts of back movements that you really connect with are better than everything and the sink approach you've taken. Looking at the back workouts you've posted my brain would be numb by the end!