lace insert in top photo tutorial BASICALLY in a nutshell here…buy a tee…buy some lace…pin the lace to back of tee. Sew lace on the tee. Cut out fabric that is under the lace, but leave about and inch to sew back to the sides for stability.
Keep Calm & Do It Yourself: DIY Balmain Denim Jacket // TUTORIAL - Great tutorial for adding contrasting fabric. The spikes and studs are not my style. Would probably use something else, maybe gems and pearl beads.