How can I improve this substance fabric?

Stu2Prof

Hi its my first time messing around with substance and I'd really love to get some feedback on how I could improve this blanket material. It seems like I need a tight black edge where the bumped up pattern meets with the inner white stitching but Im not sure how to do that. Also I dont know how I would go about creating the pattern of small wrinkles that is happening across the entire blanket.  Any suggestions?

Ged

for the small wrinkles I would create a nice wrinkly bumpy noise on its own and then use the pattern as a mask but blur it so that the wrinkles fade towards the middle of the puffy parts. Then to make the stitching clear, Multiply the joins/stitching over the top of everything to suppress the wrinkles etc in the right places and then you might not need any darkness/ao around the edges.