Is this shirt too small or too large for me?

[lungdoctor]

I'm a slim, thin, short individual. (Collar size 14.5''/37cm, sleeve 79.5cm from neck mane, 54.5cm from shoulder if arm not bent, waist 27.5'')

I've found shirts that fit me in terms of not being too billowy around my arms and torso in circumference (I get tailor to trim arm length as need be).

However, I've noticed when buying new shirts e.g. this one from TM Levin 14.5 slim fit, they seem to have the space between the buttons bulge outwards.

I can't work out if this is because the shirt is too small or too large for me? I don't like to have there be a gap between the buttons that bulges out like this. Or is this normal and maybe I should just get something to attach my shirt firmly to my trousers and keep it straight?

Thank you for your tips - I'm new to style!

 

[lungdoctor]

BTW, I don't know if I'm allowed to ask for UK store advice - if I am, if this shirt is too large for me, does anyone know any stores other than TM Levin and Topshop that do smaller man officewear shirts for under £50 per shirt? Charles Tyrwitt shortest is too large for me as are Moss Bros.

 

[thefringthing]

Hard to say without seeing a frontal photo of you standing with the shirt on. We can't see the collar, the sleeve length, or anything. Some bunching when you sit down is normal. If the shirt is too wide in the torso, a tailor can slim it down inexpensively.