Polka Dot Blazer Inspiration

Been looking around for blazer shape inspiration the past few days for the polka dot blazer and it seems like Zara and J.Crew have plenty of my favorite shapes. I think that something of a combination between the two is what I'm going for. I really like the sleeker collar and shape of the Zara blazers (top two) but the length of the J.Crew blazers (bottom two) is more what works on me, I'm not really tall enough to pull off a longer blazer. Now I'm trying to decide if I want to line this blazer or not, I'm on the fence about how weird it is to line a cotton blazer. Hmm...