I'm identified, possibly, a few areas to be looked into, but I wanted to bounce some ideas off people here before telling the tailor how to do his job

1) More underarm drape and, very slightly more drape on the top. Is this necessary to create a look like in picture 4?
2) Perhaps, very slightly wider shoulder?
3) Will the slight drape on the top will create a slightly more pinched waist? Would that be appropriate. Reference picture 4
4) Should I request for a higher button stance?
*5) What I also need direction about is on the way the quarters are opening. After referencing pictures of open quarters as seen in pictures 2 and 3 below, it *seems* that the quarters for this coat of mine is *cut* open, and looks to be unnatural to me. I don't know if I'm correct in saying this, or if it's just me over-thinking things. It's also slightly more rounded?
If this is a problem, how should I advice my tailor to address this issue?
Pardon the partial undress, this is a picture from some time ago --
Picture 2 and 3 (Of examples of open quarters that are different from mine)
Picture 4 (A shape I quite like, with, perhaps, slightly open quarters)--