What gorgeous leather. And the name: 'Pearl" truly seems to describe the colour. It's luminous, and you look luminous in it. I can see you wearing this with great joy. The leather looks incredibly soft.
Now, as to sizing. I tend to agree with Shevia -- on the models it looks a bit shrunken with long arms; on you the fit is not shrunken. It seems just verging on oversize. Do you want the oversize look? If so, this is the right size. If not, then you might need a size or two down. I think the size lower would still close over your bust.
Also, I guess relevant: indoor or outdoor jacket for you? To my mind, oversize works better as outdoor jacket. But I live in a completely different climate so my thought may be useless there. I think this way because I have to layer a coat over top of my indoor jackets in winter.
The sleeves are obviously meant to be intentionally long. But it appears they are just TOO long here....so if you keep, I would have them taken up a bit. I can't speak for you, but a sleeve that constantly falls down and needs to be pushed back up is a sleeve I can't bear wearing; I hate fussing like that.
