288 faces?  if that equates to polys , the dress is way too low in resolution.

you need at least a few thousand polys ( 8 to 10 for a dress) for it to look anything like

good.

grab one of the freebies here and look at the poly count in Blender.

the way the mesh 'flows' can also make a big difference in how it drapes as well;

if you can approximate the way the polys flow to a similar way as the figure itself, the drape will be smoother.