The long violet dress combines slim shoulder straps with a deep central V. A sheer-looking area sits in the middle. Many small reflections form an ordered curved drawing across the bodice and continue into the longer lower surface. The skirt widens further down. One hand rests at the hip. That arrangement differs from the larger connected reflections of the short violet reference, although both occupy a similar general colour range. Keep the surface question separate from your response to the shade itself.
Follow the drawing near the upper V first and then downwards. Would you want that continuing direction or a clearer division between bodice and skirt? Set the pattern beside a quieter surface from a similar distance. You can like the upper line while looking for another length. Name those wishes separately so actual available combinations can be compared, rather than treating every visible feature of one reference as a requirement.
At the fitting, consider the lower skirt with your intended shoes. Check the visible floor clearance while walking and turning. Request matching side and rear views of the same actual model instead of completing an unseen pattern course with another reference. Keep its confirmed version beside your visual selection, so the style preference and the offered product remain connected.