Advice on lapel width

[Philosophi]

Hi Style forum,
My first post here, however I have been lurking around for some times I was wondering if I could get some advice regarding lapel width. The lapels on this jacket are 9.5 cm or 3.75 inches. I am a fan of the wider lapel style, but I was wondering if they look too disproportionate with my figure. I am aware that a classic lapel should fall somewhere around halfway across the width of the chest.
My work place is business casual so I wont be wearing a tie.

P.S I do know that the jacket is tight, I am planning to get it remade however I just want some advice regarding the sizes of the lapels

I am 172.5 cm tall, 56kg. Shoulder with is 44cm for additional references. Thank you in advance!

 

[bicycleradical]

I think those are fine. You could go to 4" and I think it would be ok as well.

 

[Philosophi]

Thank you!