I have a grey oversized blazer similar to this. It's black on the inside of the sleeve so you can see it when it's rolled up. I like how the black blazer in this pic looks too; especially with this shirt dress.
From the left: "Nike x Sacais latest collection that I really love. Pollini-boots – a gift! My precious Fendi-boots with fur. My favourite bag from Emilio Pucci – the designer Massimo Giorgettis' first collection, it was amazing.