My shoulder workout is
Military Press or DB Press 2 sets
Side Laterals 1 set
Rear Laterals 1 set
The outer flare and rounding has a lot to do with side laterals. The "bowling ball look" from the front. I would forget about super setting or adding more sets. I would also never ever do an upright row, ever. I think they are useless and unnecessary strain (my personal opinion)
I have heard people say they cannot grow their shoulders, etc. Some people think they do a lot of weight on side laterals, etc. But i am up to doing 70lbs side laterals each hand, holding briefly at top and controlling down. I hope to do 100's one day, might not happen

But that is overload. I am just saying i see people military press 2 plates then hop over and side lateral 25-35lbs... what?! I don't know what kind of weight you are pushing, but thats not my point it is like the previous poster said strength increase over time.
Write down what you do each week and beat it. There is NO WAY in year if you go from side laterals with 30lbs to 50lbs you did not grow those puppies. Keep the form good, reps 4-8. There is no magic exercise for any body part, just time, patience, and the grind every workout.
Also, consider how you do the movement. Some people have straight arms like a T, this doesn't put your side delts at their best working position. Bend the arms a bit, follow the natural line of your scapula a little while maintaining a "side" lateral, and try to keep those elbows from flaring out all over the place.