Might even want to back off some if you are doing all of those exercises each time.
One heavy pressing type exercise, lateral raise for the medial head, and a rear delt exercise, and call it a day. Personally, I reverse the order nowadays, rear delt, medial head, and then a heavy pressing exercise. Then call it a day. The first two (rear and medial) are higher reps (12-15) and sets, and the last is less sets and as heavy as possible for 8-15 reps.
Try that for a few weeks.
Oh, and drop body fat. Shoulders don't show well at higher levels of bodyfat. Just making a snap judgment off the pic you posted in the first post, no definition of anything visible in that pic.
When you drop bodyfat down, it is like carving a statue - the fat between the shoulder and the arm is, visually, scooped out, leaving a defined shoulder and arm separation, which makes the shoulder look rounder. On the other hand, with higher bodyfat, the line of the shoulder does not curve in toward the arm, making it look round, but is simply buried in fat and visually lost.
Think of drawing an outline of a head and torso on a piece of paper. When you draw the round head, neck, traps, and then get to the shoulders, the shoulder line just goes straight down the arm in a straight line, or you carve out that fat, and now the line you draw is rounded to connect to the arm.