The burgundy dress with long sleeves combines a closed upper outline with a narrow shape that opens slightly towards the lower edge. A small pale bag and visible pale shoes introduce a colour change around the dark surface. For a winter outfit, use this to assess the view after removing your coat. Do you still like the visible contrast when the outer layer is gone? Place your own bag beside the actual dress and decide from that combination rather than the photograph alone.
The sleeves appear relatively narrow in this image. Take that as a reason to test movement underneath your coat, without drawing conclusions about fabric properties. Put the coat on, reach forward and remove it again. Look for any change in the position of the sleeves or upper dress. Here the lower edge leaves the shoe fronts visible; establish your own floor clearance with your intended pair. This reference helps plan two complete outfits, but it does not establish insulation or suitability for a particular temperature.