That is not a Musa. The Isaia on the photo is from Lane Crawford. I believe it is the Gregory model. Pretty must a standard cut, light shoulders, soft fabric. If the arm scye was right, I would have bought it. Now looking at the pictures, and taking your advice, I've decided to pass on it. Thank you for saving me cash.
I tried a Musa model at the Isaia boutique. On sale but more expensive at US$1,900. Wider lapels, a strong blue color, wool / silk, herringbone. It's also nice. More fashionable but still keeping their sartorial roots. I'm thinking of trying it again taking note of the sleeve using what I've learnt here.
Difficult to take photos of me wearing the Musa at it's at the actual Isaia boutique. I guess I can't say to the sales person "I value the internet's advice more than yours so do you mind if I snap a photo of myself so they can assess the fit of your suits". Lol.