You can find the parent corset mesh in DerivableR catalog here, this creator provides the texture for Corset part
This mesh was originally created by Delure rights granted for deriving via IMVU
Maps & Texture Guides
M00 Body Layer
M08: Corset Bottom Lace Right & M09: Corset Bottom Lace Left
M10: Corset Collar Lace
M18: Skirt 1 Back
M19: Skirt 2 Back
M20: Skirt 3 Back
