These shoulder lines are easiest to compare in two stages. First look only at the upper edge: where is the shoulder bare, where does a sleeve begin and where is one side covered? Then bring length and skirt shape into the decision. The five references include two short pale options, a long burgundy dress, a long pale look with a train and a green asymmetric model.
The green look is included as a deliberate contrast. It shows a one-shoulder solution and should not be described as a symmetrical off-shoulder dress. Perhaps you want one exposed shoulder rather than a line below both shoulders. Looking at the upper area separately from the skirt makes that distinction clearer.
The individual pages each address a different detail: vertical bodice lines, sleeves and bag, long side pieces, a train or asymmetric accessory placement. Use the details as questions for a shop. Visible pattern does not establish fibres or internal support. A real decision needs the offered garment, normal arm movements and the pieces you intend to wear with it.
