Yes, the Vincenza has a really nice smell, doesn't it? I have two in my bedroom now, they are my version of potpourri. (the wife disagrees)
In terms of fit, I'm just not sure what you would really accomplish. Aero might not tighten up the upper arms additionally, as that might be considered part of the pattern. To me, they don't look bad (at all), and to me part of the look of the Board Racer is the taper starting near the elbows down to the sleeve zippers. From the side views I wouldn't trim the back anymore. Don't end up with it as a second skin, l made that mistake on my first board racer, ending up selling it and going with the next size up and now I'm thrilled with the fit / comfort. I agree with another comment that a little bit more sleeve length would be good if you were riding in it, but if it's just for casual wear that's another aspect I wouldn't change. I think you did really well and if IMO it's time to just beat it up and let it conform to your body.