A dark textured hem changes the surface of this long dress noticeably. Fine pale lines sit above on a narrow shape with a V-neck and broader straps. Lower down, the outer shapes become larger, irregular and feather-like. A light-looking outer skirt area continues towards the floor. The image shows that visible texture but does not establish which actual materials produced it.
If you like this lower focal point, begin with a quiet shoe and view the garment while walking. A strongly decorated shoe would introduce another accent into the same area. Compare both possibilities without changing bag and jewellery simultaneously. You can then see whether you want a continuation of the structure or a clearer counterpart beside it.
Add small earrings or a short necklace near the face afterwards. The broad straps and V remain separate shape elements. Hold the bag in its intended place and check it while sitting too. A long skirt can conceal other pieces while standing; the complete combination should therefore be seen through several ordinary movements before the accessories are settled.