I'm no tailor. (caveat)The divot at the top of the sleeve may work itself out with wear as the jacket shapes itself to your body. the looseness at the triceps is more of an issue IMO, possibly because you're right handed? (left arm is less developed, less voluminous). Not easy to fix. Tiny bit more waist supression may help, but IMO the fit as a whole is not bad. Sleeve pitch is good. Collar is good too.