Topstitching detail on Modern Style Sofa

This slipcover is for a new Arhaus Remington sofa 108" long.  This is a very large sofa.  Each cushion is 4 ft wide by 3 ft deep. The customer wants to protect the Belgium linen upholstery while her children are small. She chose to copy the upholstery and had me topstitch the seams.  The fabric is a linen/cotton blend and a very close match to the Belgium linen. The topstitch detail and waterfall skirt are perfect for the modern look of the sofa. 

Closeup of the topstitching detail on the front of the arm.

Stock photo of the Remington sofa from Arhaus.